I'm joining the BlackBerry 8100 circus tomorrow. Mine was delivered on Saturday afternoon (courtesy of my good buddy, Boy Genius). I've been on-call this past week/weekend and, to my luck, was extended until tomorrow morning, so I've not switched over just yet (will do so in the morning). So far I've upgraded the OS to an unreleased version and unlocked the stock themes.
Anyhow, just wanted to stop in and say that I'll likely start focusing more of my attention to the 8100 and away from the 8700.