I've now had the 7100i for a little over 24hrs and have not intention of returning to my 7520. If this phone had a camera, it would be all you'd ever need. The screen is fantastic, like many I was concerned about the difference in the keyboards but the truetype is excellent and I'm already feeling very at home with it. The size is very nice, the two-way button is on the side where it should be and there's a disconnect button for ending calls instead of the esc button, just like a real cellphone. Using the new version of desktop software you can now bluetooth sync your desktop, so whenever your within range of your pc your bb is up to date. There also a dedicated button between the two phone buttons you can assign to any application, I have it set to messages and it's very useful.
Get the 7100i, you'll never look back