[pjlegato]

At least in California, employers are statutorily prohibited from claiming rights to IP that was created on the employee's own time and using the employee's own equipment, and agreements that purport to waive this prohibition are void.

(CA Labor Code 2870-2872; http://www.leginfo.ca.gov/cgi-bin/displaycode?section=lab&gr...)

[nappy-doo]

Great. CA law doesn't apply in Massachusetts.