Here's some review after using 3.0 for about 1 week:

- the apps seem to load faster but I have no proper benchmark tool to prove it

- occasionally got problem with wifi reception (it blinks as if it is unstable)

- the 2nd page of your iPod is empty (no problem, just move your apps icon from 3rd, 4th, 5th.. pages)

- can read email on landscape, which is pretty good when people attach bitmap photo or screenshot in the mail

- bluetooth is available in "General Settings", but haven't really tested it yet

- Stone Loops of Jurrasica wasn't working, so I deleted and fresh install the game, it works now

Bla, bla, bla, overall it feels OK with some glitches here and there, but 99% of the time, I'm using the iPod like it always has been.

Thanks!

If you are running OS 3.0, it does have a well-documented issue on wifi signal strength.

Here's a tip that I have done to my wifi router. I changed the router mode to either 802.1b or 802.1g - for some reason, 802.1b/g combined setting is problematic with the new OS.