Navigation WebApp with Sencha Touch and Google Maps?

[Dafram]

Hi!

I'm an ExtJs programmer but I really like Sencha Touch and I wish to try it for a first web app.

My goal is to create a Navigation App for iPhone with these features:

1) Show my position.

2) Show a map of Rome (Italy) with some placeholders and show my orientation (using the compass API) and my relative position in the map.

Is it possible with Sencha Touch?

Where can I find some examples to begin?

Thanks in advance for help!

[Dafram]

Please, is there any example of Google Maps integrated with Sencha Touch 2?