I'm not sure there's much to say, other than
1) It's some work to clean up your act to 1.2.6 if you haven't
already, and given rails track record, it makes some things a lot
cleaner. They seemed to have been pretty good about pushing stuff out
to plugins that aren't core to the framework. I especially like the
multiple outputs for different formats. As mobile devices with
internet become more prevalent, it'll make a difference.
2) I assume you mean help CR members. I dunno. I don't have any
questions other than where is the doc for the rails 2.0 API.
Everything else you can read online somewhere.
Wil