Originally posted by: UNCjigga
If you're looking for an "advanced device" (i.e. Windows Mobile or BlackBerry) and you're a heavy data user, go for AT&T (and get a 3G phone.)
3G is not a huge difference from EDGE when it comes to page rendering on a smartphone. The only noticeable speed difference is when you're tethered to a laptop, then you'll notice a big difference in file download speeds. (this is why when you see ATT commercials they always show a file's download progress compared to the competition, but they never compare two browser windows rendering a page)