Ubisoft's Rocksmith ran into some hot water today after getting sued on the grounds of patent infringement by a guitar tutorial software company.
Allegedly, Ubisoft infringed Guitar Apprentice's "Media system and method of progressive musical instruction." Ubisoft was also in trouble when the UK rock band Rocksmith claimed that they owned the 'Rocksmith' trademark.
Rocksmith is certainly in a mess right now. Hopefully all will be well once it releases finally in Europe in September after being delayed last October.