Hi, I have some questions about the Samsung Galaxy Tab 8.9, I am planning to sell my Ipad and buy the Tab 8.9. And I just want to make sure that the Samsung Galaxy Tab is the right tablet for me. The first question I have is about the videochat, what do you need to download for that? And how does it work? And is it also possible to videochat (via an app) on MSN and Google+? My second question is about the external SD card, can you put apps on the SD card?, and what is the difference with having an app on your intern memory and SD card.