Well, folks...my wife and I received our 8310s today...unfortunately, only hers works properly...my trackball is broken...it scrolls okay, but clicks on stuff even when I don't press down on it. Of course, it is unusable like that. :(
Fortunately, AT&T is sending me out a replacement at no charge...I should have it in a couple of days. Hey, at least they were free. Guess we'll have to make do with just one for the next couple of days. :D