Firmware 2.1 for iPhone has just been released. Has anyone tried updating? Will only jailbreaking (presumably) be lost, or will something worse happen?
Firmware 2.1 is available through iTunes 7.7.1, by the way, so it would be interesting to know which is better: updating through
a) iTunes 7.7.1 to firmware 2.1
b) iTunes 8.0 to firmware 2.1
Curious minds want to know!