Unfortunately, I think you'll find a lot of the newer WebKit features missing from the Pre. For example, the canvas implementation is stripped down and lacks, among other things, gradients.
Yes, I've seen- it's definitely lacking. Hopefully they'll update with more features, but ultimately, my main goal is to provide the page animations, history management, AJAX, etc. — Someone could create a Pre theme which doesn't use CSS gradients, etc-
