I have an iPad 1 32GB Wifi/3G that spends 99% of it's life on the Apple keyboard dock, no cables unless I'm charging it. Every now and then I'll see something light up out of the corner of my eye. Sure enough my iPad turned itself on from sleep mode, and eventually shuts back off soon after. I keep it on standby so it is essentially waking itself up somehow. Anybody have this issue? Happens fairly often.