I'm with you, JS. I've waited too long for an upgrade (since last November) so whatever comes out in the next couple of months that looks best (Bionic, SGS2) will be what I go with.
I also agree that it looks too thin for LTE. Shame, since I would really like a global phone (holding out that possibly the Bionic will have global capabilities).
Finally, I don't like the sharp corners in the design. The thin profile is really nice but rounded corners are more aesthetically pleasing and slide into pockets smoothly.