Personally I am encouraged by news like this. It brings us one step closer to fixing the US patent system.
I am not certain I agree with you at all, unless you are trying to use it as an example of how broken things get.
MS paid for rights from whom they thought owned the patent, as did many others. While I personally think patents are in fact very screwed up, this case seems even more screwed up as the people paid have for quite some time been considered to have owned the patent and should have applied.
Seablade