When Microsoft first sued TomTom for patent violations in TomTom's Linux-powered navigation devices, I wasn't sure how much of a fight TomTom would put up. Legally TomTom was between a rock and a hard place. You can't use restricted-use patents in GPLed software.

TomTom and Microsoft have settled the patent litigation. Here's TechFlash's coverage. According to the Microsoft press release, TomTom will remove functionality regarding the FAT patents within two years, which is no big deal, frankly, and in the meantime, they are covered "in a manner that is fully compliant with TomTom's obligations under the General Public License Version 2 (GPLv2)"

Can you believe it? This is so great!! Morrison & Foerster are representing TomTom in a new patent infringement lawsuit TomTom has just filed against Microsoft! I love covering their cases. Patent law is usually soooo boring to me, but these guys will keep me awake, and no doubt if I pay attention, I'll learn a lot.

Microsoft filed suit against TomTom today, alleging that the in-car navigation company's devices violate eight of its patents -- including three that relate to TomTom's implementation of the Linux kernel.

Here's the complaint filed by Microsoft against TomTom, NV and TomTom, Inc., alleging patent infringement, as PDF and as text. We'll be setting up a Timeline page for it after TomTom files its answer.

This is exactly what we were afraid of. Last month, when Microsoft sued Dutch GPS-maker TomTom on the principle that parts of Linux -- which form the guts of TomTom's device -- violate Microsoft's patents, we hoped for a quick settlement.

Linux Foundation Executive Director Jim Zemlin said in his blog yesterday (26th February) that the Microsoft patent infringement suite against TomTom, at least at present, does not appear to be a covert attack on Linux.

A quick glance at TomTom’s response to Microsoft’s lawsuit that jeopardises the GPL and Linux

TomTom CEO says: "We spent more money on patent litigation than R&D"