Hi CharlieK -
Thanks for asking, but you can use wattOS for whatever you like with no obligations
I have even had a company use it for their netbooks they sold, so its truly free and open...
Of course support here is best effort and free (and I am slow sometimes). If you want/need professional support with SLA's , or per incident help, feel free to contact me directly to discuss that.
Good luck and have fun
biff