Hi,
I am very much interested in your project.
I have developed a number of applications with phonegap for android, ios and blackberry.
the features you mentioned are very easy to implement and i can submit the phonegap 3 compatible apk with full source code and doc on how to setup in your ide.
few of the apps in app stores are AACM, Workoutbox, MultiDine, HatersnapbackAuthenticator.
I am newbie here with 'freelancer.com, but active in other sources.
expecting your reply,
thanks