3.0 has been fairly stable for me so far. Slight lag when launching the messaging app, slight lag when launching iPod app, couple of crashes from other apps, and the fact that smart playlists are empty when sync'd. This morning I discovered what may be the deal breaker for me. My Alpine ida-X100 can't see my iPhone anymore! When I connect the cable, the head unit displays the searching message, pauses then reverts to the "No USB Device" message it has when nothing is connected. The iPhone itself seems to cycle from connected to not connected and back again. I bought this head unit specifically to use with my iPhone so I'm praying this will be resolved in the final version of 3.0 Aargh!