Intriguing, however, using open source software, even the excellent stuff used in the Safari browser for OS X, doesn’t automatically solve the problem with limited screen sizes on mobile phones. It’s an interesting problem, on desks the displays attached to the desktop computers get bigger and bigger, and at the same time the mobile phones get smaller and smaller, which makes it hard to increase the size of the screens.
It’s a next to impossible task to make a website that’s appealing and functional to both a user with a big display and a user with a tiny display. It just doesn’t work. On the other hand, you don’t want to have to maintain two versions of your site which seems to be the reason why xhtml-mp hasn’t really taken off.
via Surfin’ Safari