If you have a choice of using an already-existing format or protocol that works just as well as the new one Google is trying to replace it with, the rest of us, who don't patent, are better served if we all use the older one, including Google. That way we know that we won't be forced out of the market at some future date, when the cost of staying in is paying huge legal expenses, and royalties, for "technology" we could have had for free.
Unless Google also adds a disclaimer of all patents on all the new stuff, I'd be very careful about which ones we adopt.
http://bit.ly/b6CAJp