I used iBrickr on my XP system previous to this release and had several ringtones, different sounds for lock/unlock, etc and all have disappeared. However, in Contacts it says now under my wife's number "user:Fergie..." where I had uploaded a custom Fergie ringtone for her. However, now when she calls it reverts to the default iPhone ringtone, so the ringtone file is not there even if it says it is.
My update went smoothly, and did a re-activation. But I lost no email, photos, contacts, phone records, etc...
I sorely miss my installer.app items...the iPhone looks kinda ugly without summerboard on there!
Love the Home button enhancements. And speaker volume is increased IMHO.
Also, the Apple video says the TV out works with "Apple AV cords", not sure which one. I'm going to try my DLO Home Dock (I have regular and deluxe as well) when I get home tonight to see if that works for TV out on iPhone, it does work for my 30gVideoiPod. Otherwise, I'm off to the Apple store tonight at the mall to see what cables are avail...
Good update overall, eventhough I (temporarily so far) lost all my installer.app apps.