I just tested the app on Android 2.3 - HTC desire.
The scrolling performance are so bad than the app is not usable. Many 2.3 devices will generate deserved 1 star review.
However I tested the Sencha Touch Kitchen Sink web app on the stock browser of this device and the scrolling is very nice even on a long list of item with the same image in each rows.
We can not release on this "old" devices like that.
Solutions:
- fix the scrolling on 2.3 to be as good as Sencha Touch.
- make an old device version. Remove icons, images, and everything that are not 100% the core goal feature like the overlay info...
- we don't release the app on 2.3