There has been quite a bit of noise going across the wires after Microsoft announced they they are allowing anyone to use their patents with respect to several key WS-* standards. Its their Open Specification Promise. It only covers those patents described in detail (rather than referenced) which is a bit of a shame, but its a big step in the right direction to removing ridiculous patent blockers to technology adoption.
It includes WSDL, so I'm assuming that applies to any WSDL specification, and a whole heap of the latest and greatest standards that people will begin to want to use.
Nice one Microsoft, just one small question...
What about BPEL? Is it that there are no Microsoft patents in this area, or that these aren't being opened up yet?