Over the weekend, we noted that one of the new features in the second beta of iOS 5 released to developers on Friday was the addition of native-style momentum scrolling for web apps, a key feature that will enable web app developers to easily make their apps feel much more like regular iOS applications.
Daring Fireball now points to this demo from @cpojer showing off how the new CSS property can be implemented on a web app. While the demo will only function properly for those with iOS 5 Beta 2 installed, it does show the momentum scrolling and an implementation of the "pull to refresh" functionality that has become increasingly common on native iOS apps.
Article Link: Demo of Native-Style Momentum Scrolling in iOS 5 Beta 2