A:AnswerGo SMS appears to support what you're describing.
However, the features for each program is best answered directly by the developer.
Thanks for your interest in Samsung products.
--Mr.Samsung
A:AnswerThis would be best asked of Skype. If the Skype App is available on the Galaxy Tablet/Android system, they would be responsible for the features of their App and could best address this question.
Thanks for your interest in Samsung Tablets.
--Mr.Samsung
A:AnswerThere are multiple apps from the Google Play Store that work on this tablet. For example, Kindle, Nook, Zinio (for magazines), it reads .pdf files. I am sure there are more than this. Check out the Google Play Store (Android Apps).
A:AnswerNo. The memory card port supports microSD and microSDHC up to 64 GB. This will allow you to add more memory if you prefer in addition to the existing 16GB onboard already.
Thanks for your interest in Samsung Tablets.
--Mr.Samsung