I don't know for $60 less you lose out on the gorilla glass but you get a microUSB card.
You don't have access to Amazon or Google but if your willing to convert the device in about 1hrs(total to collect the files and read the
instructions). The process is 15min. you can have a full Android device. That has both access to Amazon, B&N, and Google.
Heck I'm going to pick one of these up for myself it's a great deal. I was thinking of buying my kids a 4" Galaxy Player or Kindle but for the price this can't be beat.
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