I had the issue of not being able to update or factory restore. They paid for shipping bothways. All they did was replace mine. This one came with DG2.2 installed. Plus it has the auto-rotate option (and it works). So I guess it does have a built in accelerometer. Well I have ordered a Vewsonic gTab. Should be here by the end of the week. This will be a good little tablet for my son.