Frankly, I was surprised to see that this feature was not implemented out of the box. My other phone is a Tilt running SPB Mobile Shell, and it automatically keeps your list of browser bookmarks sorted by usage, with the most frequent ones right on top. Incredibly useful.

Does anyone see a way to do this with either the initial browser thumbnail screen, or the bookmarks list? Bonus points for increasing the number of thumbnails stored on that initial page...