The story so far: Apple sues HTC (while having a go at Android as well). HTC makes friends with Microsoft. Microsoft attacks Motorola. And now Motorola asks a judge to invalidate the anti-Android patents that Apple is using against HTC. Oh, and as we mentioned recently, Motorola is taking its own legal action against Apple.
This new move to have Apple's patents declared invalid would prevent Apple from dragging Motorola into its ongoing case against HTC.
[Source: arstechnica.com; BusinessWeek.com; electronista.com]