What about the next-gen Nook?

After watching the Amazon press event, I'm curious what the next generation Barnes & Noble Nook tablet would be?

It's about time for a refresh product line. Though, one must consider the investment from Microsoft into the Nook and College divisions of Barnes & Noble earlier this year as it may have affected development the Nook line.

So, will the next-gen Nook be running; forked android or windows 8?

And how will it be marketed now?

What are your thoughts?