Offline mode in Vaadin Touchkit

Hi everybody,
I want to develop a mobile on-/offline app, where data can be downloaded from a datasource, is available also offline and can be resynced to the server, when online again. I have 2 major question to Vaadin Touchkit :
1. Is it possible to start a Touchkit app offline, so that only the local data is available ?
2. Is it possible to deploy a lightweight db on the mobile device, that can be accessed by the Touchkit app in offline mode ? Some data should survive also a device restart.
Many thanks !

Joern
 

Just want to bring this up again. Anybody any ideas ?