Today's FTC ruling builds on four years of legal wrangling with Rambus. The commission had accused Rambus of deceiving the memory standard-setting body JEDEC (Joint Electron Device Engineering Council) by failing to disclose intentions to patent technology that would eventually be part of the DDR SDRAM specification. These past claims have been confirmed by the FTC's unanimous ruling today against Rambus.
Considering the biggest leg that Rambus has to stand on is the leg supported by money from lawsuits and settlements, this really does not bode well for them. We won't be seeing the end of this for a long time, unfortunately. Thankfully it is impacting DRAM markets in a fairly limited fashion.