Apps that really take advantage of data usage?

[dungeon92]

Anyone here know of any apps that really take advantage of having data on my iPhone, I've only used 952MB since I got it in December, I feel this isn't fully using the money paid to AT&T. So any fun apps to bring my data usage up that are also useful for college would be nice.
_________________
"You must control your future by taking command of your present, and fixing and learning from your past."

"When history is forgotten people don't realize when it repeats."

Going to Missouri S&T!!