Boy Genius Report has a review up. As a former Treo user who found BlackBerry when Treo instability issues forced me to look for an alternative, I've always had an interest in Palm products. The original Palm Pilot was a revolution but they didn't adapt or innovate the Treo line once it came out. Palm chose to patchpatchpatch the original OS and it simply wasn't up to modern standards.
The Pre is a whole new beginning and worth a look to a non-corporate user like me. Looking past the bells and whistles, and overall new-ness of the Pre, I find myself liking the concept but skeptical that this platform can fulfill my individual needs as well as the BlackBerry.
According to the BGR review of the Pre:
Pro:
Snappy OS.
Excellent multitasking.
Nice smooth touchscreen.
Con:
Suspect build quality.
Inferior keyboard.
Undecided:
Mac support?
Cloud syncing.