Rails 1.2 or edge? what to use?



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.