Which Surface tablet should I buy? I want to use photoshop (resident on the tablet) for basic edits/corrections/drool & blemish erasing with out needing a wifi connection. I see there is a windows RT app (photoshop) in the windows store, but am suspicious because it is free. Do I need to go with the pro to use photo shop Elements with out wifi? If it is just to expensive to get Photoshop in a mobile manner, should I just drop back to the ipad and wait til I get home to use adobe Elements?