Planetarian,
Did you get the capacitive touch displays? I know on my 2.4" display you can use your finger sort of but really need a stylus or some other method becasue of the resistive touch technology. I really like that they have the capacitive touch option for the new 4.3 but I just can't justify the expense. They also have some neat built in functions like keyboards but I think you have to use it in GFX mode to utilize those which is a shame. I seem to remember a post on their site that says they are working on the keyboard functionality to work with SGC but that might just be wishful thinking on my part.