This version was build using SDK 4.2, but it should work on any machine running iOS 3.2 or later. Some minor bugs have been fixed and a tiny little feature has been added. We are close to the final version.
Blog: November 2010
Several bugs are fixed and despite the feature freeze, some tiny little additional features have creeped in. Especially the bounce animation, showing at the upper and lower limit of a zoom, is much improved an looks quite good (IMHO).