To be honest, the same reason I started OpenPhoto/Trovebox is the same reason I don't trust a 3rd party service with my data. I noticed you guys supported personal S3 buckets. I'm curious how that worked out for you as that was one of our major differentiators (we supported upwards of 7 third party storage services, incl. storage at University of Southern California). We didn't find a market for it in the consumer space.
If you're in the bay area I'd be more than happy to grab a coffee.