I'm writing a 3-article series on JSF 2--<http://www.ibm.com/developerworks/java/library/j-jsf2fu1/index.html>--and in 24 hours it's gotten over 1200 views. Compare that to the latest article in a very popular series on Grails--<http://www.ibm.com/developerworks/java/library/j-grails04289/index.html>--which has about 6000 views in a little more than 2 weeks.
Looks like there's a good deal of interest in JSF 2!