Gravity Hook HD, the latest addictive iPhone/iPad title from Canabalt developer Adam 'Atomic' Saltsman, hit the App Store last night for $2.99. You can still play a mouse-based version of the full game online, but now you can also enjoy it on the go.

Danny Baranowsky, who composed the atmospheric tracks that so many people loved in Canabalt, also worked on Gravity Hook HD's music. To celebrate this new release, Saltsman and Baranowsky have made its entire seven-song soundtrack available for free this weekend!

You can grab the electronic soundtrack in a variety of high quality formats at Baranowsky's Bandcamp page. After this weekend, it looks like you'll need to cough up $0.99 to download the full album.