"If TomTom is infringing Microsoft's patents, then everybody who is running Linux is infringing those patents. This is an attack against Linux; TomTom has just been given the honor of being the first defendant. Microsoft's motivation would seem to be clear. The company has tried for years to sell versions of Windows into the embedded systems market, with success best described as "modest." Linux is hard to compete against in these systems; it is highly portable, can be customized to an arbitrary degree, offers support from multiple vendors, and can be shipped with no royalty charges. Microsoft would like to take away some of those advantages by imposing a patent tax on embedded Linux deployments. Embedded systems vendors cannot miss this message: they can pay licensing fees, or they can pay legal fees."