Before I buy the Samsung Galaxy, I want to know what the difference is- apart from size on the 8.9 and 10.1? Ive looked at the specs but Im not super tech savy so I dont get it. Plain language anyone? Also what is most important is I need to have Internet Explorer due to some programs I work with that are set only to be accessed through that. Can I just download internet explorer onto my Samsung? Thanks in advance for help!