Take a look at:
http://www.jboss.com/products/platforms/dataservices (Official Site)
http://edgarsilva.com.br/2008/11/16/trabalhando-numa-demo-metamatrix/ (MetaMatrix/Seam in Portuguese)
Thanks Joao. I looked at those, but I'm wondering, when will it be open sourced? Some of the releases indicate that RH is planning to open-source it. That would be a big help to those of us who want to learn how to use it before buying it or using it for customers.
JBoss is certainly planning on open sourcing it and I know personally that they are currently working on it.
One of the guys here said that they best bet is to post question on MetaMatrix on the MetaMatrix Forums ;-)
They will know a lot more of the details.
Thanks, I checked that forum. It sounds like the goal is to have (parts) open sourced sometime by the end of the year, which would be great.