Do you think you could turn an arduino into a mini programming computer for C++. And if you can what one would you use?
It is unclear just what you want to do, but there is no way that an Arduino can compile C++, especially since it has no native file system. You can run interpreters such as Bitlash, though.
Should try raspberry pi. The beagle board has a terrible forum (not the members but the forum website itself). Raspberry pi forum is much better. (Who else hates TI?)