As many of you will have noticed, recently we (the Seam team) have been putting our energy into other efforts than Seam 2. I've been working on Web Beans (the reference implementation of JSR-299). Shane has been working on the JSR-299 TCK (to test all implementations of JSR-299 for compatibility with the spec). Dan and I have spent a lot of time pushing some of the JSF improvements from Seam into JSF 2 (the proposed final draft should be up any day now!).
Adding to the stockpile of features that I've packed into seam-gen in recent months, I just committed a new seam-gen command that generates a front-end to Seam's identity management API (JBSEAM-3717). Identity management is one of the most significant additions to Seam in the Seam 2 code base. But since its just set of framework classes, you need something to tie it into your application to truly appreciate (or even give notice to) its potential.