If you and your friends were gathering a pool of bets together as to when the first patent case would happen in 3d printing, someone just won the pot. 3D systems has filed suit against formlabs for possible patent infringement.
In a press release by 3D systems, they state that not only are they going after form labs, but also Kickstarter for selling the device.
Although Formlabs has publicly stated that certain patents have expired, 3D Systems believes the Form 1 3D printer infringes at least one of our patents, and we intend to enforce our patent rights
It is worth noting that the “cube” printer that Make magazine recently named the most reliable and easiest to use, happens to be made by 3D systems. Note that this one appears to be a typical rep-rap derivative.