Adam Atomic and Danny Baranowsky, the creators of the critically acclaimed rooftop jumper Canabalt, are set to rerelease one of their first titles with some serious updateage. The original Gravity Hook was a 5 day project released back in 2008 and was the first collaborative effort by the duo.  Gravity Hook HD is set to release on the iPhone soon and after playing it, you can try it below, I gotta say it is going to be perfect on that touch interface.