I have been playing with the bluetooth for the last couple of days and I have found that after awhile it seems that the tablet just disconnects. I was playing music through my laptop at work and it was great. Then suddenly it just stopped playing. I thought it was a buffering issue, but then I noticed that the devices were no longer connected. I had both a mouse and the laptop connected via bluetooth.
I don't mind if it goes to sleep when I am not using it, but it should not go completely to sleep if there is network activity.