FYI, it is not uncommon for patents to be filed based on a scientist's or engineer's work that is about to be published/presented at a conference. Universities make big money on licensing agreements.
I don't know if "rarely" is a fair characterization. What percentage of patents actually get invalidated?
They're maemo and MeeGo... "Meamo!" sounds like what Zorro would say to catherine zeta jones... after she slaps him for looking at her dirtily...