If you are looking for a Sencha Touch Extension to emulate Coverflow take a look at this:

http://bit.ly/SenchaCover

It works only on iOS devices since Andriod has bugs with css animations (same for Chrome running on Linux)
So you can try it using Safari (Mac & Win) or Chrome (Mac)

Get the code at: https://github.com/elmasse/Ext.ux.Cover


Comments, feedback, issues are all welcome!

PS: Thinking about to rename package to Ext.ux.touch