Nope. No screen protector. Call me a rebel, but I haven't had any issues at all. The closest I've come to real issues is my fiancee getting upset because teh extended battery allows me to play longer.
The Incase has the ability to sync directly through the case using their 'special' cable, but I've found that to be problematic and inconsistent so I sync outside of the case.
The only way they could have made the case better would have been to incorporate a passthrough connection for a standard iPhone sync cable instead of going all proprietary on us.