Wifi Lock works for me...
Ok.. I read all the posts I could find and installed Wifi Lock, this is the only one I tested and works great for me. (Tested using Pandora radio)
This is what I did:
- Install Wifi Lock (Android Market)
- Reboot Nook Color
- Go to your Extras and run the app. (It doesn't have a user interface, it only displays a message every time you click on it: Default / Never)
- If you are using Advanced Task Killer (or any other) make sure you deselect Wifi Lock and add it to your Ignore List
(I did it right away, I guess that's a VERY important step)
I just tested it several times for about an hour using Pandora radio, I have no idea how much it will drain the battery... If something goes wrong I'll let you know...