I was thinking today that is would be nice to have a hack that could make your double click home button to take you to the last app you were using...

Would help for when you are playing a game and get a text, answer it... then need to hit home, and click on the app. The double click straight back to it would be a nice change.

I am not sure who to talk to about the idea... something like bosspref or something.

Eitherway, thought it might be a good hack and wanted to see what people though.