If you work in the business of generating web pages to display to users, you need to know: there's going to be some major
changes in the browser landscape over the next year or three.
There are several things going on out there. Any one of them could make a serious difference to the web at large - but they're all either happening right now, or imminent.
Mobile devices are going be everywhere.
I'm seeing reports that at least one major chipmaker is planning to ship a system-on-a-chip imminently which they reckon will allow roughly-iPhone-3GS-equivalent handsets to sell at retail, without contract, for ~$100. Those things are going to be hitting the high street in less than 6 months.
I'm not sure I believe that precise graph of price vs. time (or even that I read it right) but I don't think they're wrong by more than a factor of two on either axis. Smartphones (more accurately, pocket frackin' computers
) are going to go mass market, and soon.
In 2010, smartphones sold roughly 300,000,000 units. That's about the same as the number of desktop PCs sold in the same period, apparently. This year, they're going to sell more. When those $100 beasties hit, it's going to seem like everyone's got one.
Mobile devices are not second class web citizens any more
I did some ad-hoc performance testing recently. Mobile safari on iOS 4-point-(mumble) on an iPhone 3GS was about
a factor 10 slower than Chrome 8 on my workstation. So: only 10 times slower than one of the fastest browsers out there running on much beefier hardware. That's comfortably in the same league as (probably even somewhat faster than) IE8 on the same workstation. It leaves IE7 in the dust.
Add those two items together (low prices + web capability) and you get: mobile devices are going to become a very popular way to access the web. This is going to happen fast - if we're lucky, we've got a year or two to prepare for it. Right now, I'm seeing mobile safari at about 1.5% to 3% of sessions on the websites I work on. That's up from basically zero 12 months ago.
All those browser support conversation, where you say things like "we'll support all the browsers over 5% market share in our stats"? They're going to get gate-crashed by mobile devices in less than 12 months' time, quite possibly less than 6. Maybe not any one browser on its own, but in aggregate, it all adds up fast.
The only thing I can see slowing this down is the mobile phone operators, and their we're-not-price-gouging-our-customers-
honest-guv data payment plans. Even on that front, for $100 or so, I'd be seriously considering buying one of these beasties for use via wi-fi hotspots only (hell, that covers my house and garden, for starters - anything else is a bonus) and screw the phone people.
It's the browser wars all over again
All these new devices come with their own browsers and, unfortunately, there are loads of the buggers . They're all subtly different. They're all running on different hardware, with different screen sizes. You're really, really, really, going to have to test on the real damn hardware.
The good news is that they mostly follow the standards. If you can:
- persuade the photoshop weenies to give up on pixel-perfection ('cos the screen dimensions are all over the show)
- do at least a bit of work to tailor the design to the realities of small screens (by dumping cosmetic fripperies and focusing on making the site suitable for whatever it's supposed to actually do)
- refactor all the UI stuff to cope with touch instead of/as well as mouse interactions (which is quite a big deal, especially if the site's supposed to do any quantity of data entry)
- avoid the real bleeding-edge stuff like webGL
...then you shouldn't have too much trouble keeping the browsers mostly
IE is still the biggest desktop browser, and it sucks, especially the older versions. On the desktop, almost everyone still has to support IE6/7
All the other desktop browsers are an order of magnitude faster than IE8, which is itself significantly quicker than IE7 and 6. IE9 is going to be seriously competitive with everyone else. Don't get me wrong, performance is still an issue, but the browsers are now probably less of a bottleneck than your code is.
Now, that's not bleeding-edge, but it's sure as hell quick enough to run non-trivial things at a sensible speed. Remember: there was a perfectly-playable port of Lemmings to JS done years ago
, before all this optimisation occurred. Some of the stuff that people are doing out there in browser-specific-tech-demo land is amazing (like, real-time-chromakey, real-time hardware-accelerated 3D graphics)
Mobile devices are going to become at least a significant
way of accessing the web within months. In the long run, a good chance of becoming the dominant
way. That's long run in internet time - I'll go out on a limb and say: 5 years, maybe. Mobile devices are probably going to be what finally rams the stake through the hearts of IE6, 7 and maybe 8 (with Firefox and Chrome cheering from the sidelines).
The possibilities for mobile devices to run really cool things via pure web tech are much greater than most people realise - and web tech runs on all of them without having to port to a zillion different native development environments, or get sign-off from Apple before you can ship anything. 
The references I can be arsed finding, with added footnotes
 Not that long ago, the state-of-the-art in phone games was "snake". An iPhone 3GS (which is now moderately old hat, tech wise) has far more computational shove than the system I used to play Half-Life all the way through. Yeah, these things happen to be phones, but, first and foremost, they're full-on pocket computers. People just haven't really cottoned on to that bit yet, because the future just went and snuck up on us.
 On sites I interact with professionally, I'm still seeing IE6 at about 5-8% and IE7 at 12-20%. I can't quite pull the trigger yet, but IE6's days are numbered.
works in firefox 3.5 and up, allegedly. No idea about other browsers.
. You'll need a Firefox 4 beta or another WebGL-enabled browser (I believe the pre-release chrome builds can do it too, though I've not confirmed it personally)
 I hear the cry: "How do people make money from web apps?". That requires rather more prognosticating than I'm willing to commit to right now. One possibility is Operator Billing
- it's going great guns in Africa. But that requires the mobile phone networks to be more forward-sighted than "give us $LOADSAMONEY-per-byte, and Get Orf Our
Network" and "new handset is 10% better than old one, upgrade now!", so colour me somewhat skeptical for the moment.
 On the subject of mobile browser landscape and mobile web, just read everything PPK
writes. Even if/when he's wrong (not often, on past track record) he's wrong in interesting and educational ways.