> All I have left to do is complete the new battery pack, which should boost the battery life to around 8 - 10 hours. I'm hoping to have that done in the next couple of weeks.
If this is an external battery pack, don't forget to add its weight when comparing the iPad to his device. I think it's an amazing hobby project, but it's quite clear that getting ten hours of battery life out of a tablet is a tricky proposition involving tradeoffs from top to bottom of the hardware and software stack.