Personally I like using jQuery mobile for the projects I work on because it has really broad support and makes developing in browser mobile apps easy. To be honest though I haven’t tested or evaluated many other mobile frameworks out there.

There are tons of Cross Platform porting tools like Titanium and Phone Gap – But for me, if I’m going to build native, I'll build native.

I asked on twitter for suggestions and  MooTools Mobile and Sencha Touch came up alot, If your visiting this blog and you have a favourite framework, why not let me know in the comments.