Rails 1.2 or edge? what to use?

Hi,

Hoping someone can shed some light on the best way forward here.

Over the last year I have been using rails 1.1 to develop applications,
but am now about to start a new project.

What version should I use for this?
how far is edge off from becoming an official release on 2.0?

From what I have read about ActiveResource it sounds good, is this
included in edge? how far off compeltion is it?

Any links or comments from experience, please do let me know.

Thanks,
josh