Google's brand-new Web
The problem isn't limited to small screen sizes and oddball input devices. Those were issues when the Web was mostly brochureware, but Web 2.0 presents a whole other challenge. While handheld browsers are still figuring out how to do HTML right, desktop browsers are busy scaling the Web up in brand new ways -- and none more aggressively than Google.
Take the Chrome browser, for starters. Google wasn't content with the pace of browser development from the current big players, so it came up with its own HTML engine, one that observes Web standards while discarding some of the legacy ideas from the early days of the Web. It's even gone as far as to implement Chrome as a plug-in for the less-than-standards-compliant IE6, a move that's sparked no end of debate among the competition.