Freeware vs. Shareware. Freeware is copyrighted computer software which is made available for use free of charge, for an unlimited time. Authors of freeware often want to give something to the community, but also want to retain control of any future development of the software.
Technically, any speed over the speed limit can be considered illegal and ticketable. I've personally witnessed California Highway Patrol pull over one car at 67 mph in a 65 mph zone. (Cop car was in lane two of four on the freeway, at 65 mph.
With a speed limit (largely ignored) of 70 mph. Raising the speed limit to 90 mph would save some drivers from getting tickets, but might encourage more of the 70-75 mph crowd to drive at 90 also, and some of them probably shouldn't do that.