ICS works well with Fascinate.
- Google Maps, Facebook have to be reinstalled, will not work if restored from backup.
- Google Latitude takes a few tries, since it has to ask for permissions.
- GPS works, have not tried directions yet.
- Camera works (picture and panoromic snaps) video does not work.
- Launcher Preference are blank, guessing there will be something there later on.
- gtalk, chaton, google voice, groove ip, skype, work flawlessly
- calendar, email, reader, docs, quickoffice, docs to go all work well.
- netflix works fine too, seems a little faster.
- data usage monitoring 3g or wifi does not work
- wifi works
- wifi hot spot, still have not tested it.
The only annoying thing I found was that, like the tablet OS (gingerbread), this too has 5 screens, which you have no way remove.
With ICS, you can group your applications together, so I use only 1 screen. I do not use any widget other than the power control.