Still trying to decide on a Kindle Fire or Nook Color(or Nook Tablet). Is anyone using either of these? Courious how either of these are performing as a tablet? I have an original Nook, so I'm sort of leaning toward another Nook. I know the Kindle Fire has more memory than the Nook - the Nook Color is $199 and the Nook Tablet is $249. They're both pretty comparable. So just looking for some feedback from someone actually using one. Thanks