Making data persistent in android

In my application,there are some application specific settings, which should be available to me , next time when my application starts up.

What are the best books for Hibernate & JPA?

My team is about to build a new product and we are using Hibernate/JPA as the persistence mechanism. There are other book posts on stackoverflow, but I couldn't find one that matched my needs.

A RESTful persistence solution usable with backbone.js… in PHP?

I'll preface this with saying that I'm a crappy programmer, I'm sure that what I want to do could be done in 10 lines of node or Rails or something else, but PHP is what I have available.

Can javascript access a filesystem?

I was pretty sure the answer was NO , and hence google gears, adobe AIR, etc.