TiVo successfully defends patent for "time-warp" DVR (online.wsj.com)

Does anyone have any legal knowledge on what this means for software products like Windows Media Center?

Herein lies the big problem with software patents: patents are supposed to cover inventions, but with software they cover ideas. A completely different implementation in code could still infringe a sufficiently vague software patent.

> In June, the patent office ruled in a separate case that TiVo's patent claims for its "time-warp" DVR technology were invalid.

wtf?