i don't know what happens after this evalutation period, i don't have a NIT on which to test it on.

and yea, it's not GPL. these are binary packages and have a special licensing scheme (link to it is on the download site for embedded packages).

edit:
i just realized that these packages are evaluation NOT because they're beta versions or under developement, these are evaluation because sun wants to MAKE $$$ FAST on embedded devices

see here
Q10 and Q11 are relevant.