old post but melon had some great questions...and nobody should be too big to answer noob questions.

Melon, you're very ambitious, don't let a crew of an old forums turn you off to the computer sciences. this forum is just their playground, literally. don't expect a serious response from all of them.

as far as programming languages go, many code in C, but no matter what language you use, you will need a compiler to compile that code for the target machine (and operating system) that you are programming for. As for the Nokia tablets, you can go the hardcore route and code in C with the development environment set up on a linux box (aka linux computer) or you can code in python, pygame (python libraries for games), lua scripting, Flash (this could get you some GUI functionality like the iphone, minus multi-touch) or Good ol' HTML

as far as forums go, avoid the word "emulation" as in forums its a buzzword that attracts the forum "losers" that just enjoy being pompous and rude toward anyone that they feel isn't part of the "in-crowd" or isn't an ultra PHD, guru, dali lama in linux and computers. which is ironic as many of them probably don't code anything either. they're the peanut gallery.

people like you and I end up contributing more to the community than we take. providing useful information and answering as many questions as we can: the very thing forums are meant to be used for.