I've been playing with it for a couple of weeks but today it started rebooting if I touch or move it in any way. I swapped the cables and power supply but still had the problem. I had a second spare Raspberry Pi B+ so I put that in the case and the problem is gone.
I think I've got a lose connection on the mini USB port. Is that common? Is there a simple way to fix it like maybe touching the contacts with a soldering iron? Where to you go for warranty work?