D&D announced it's going to release 4th edition soon. If you were interested in the subject, it was already apparent, but now it's official. This just goes to show a little difference between GURPS and D&D: GURPS hadn't had a new edition for 16 years when it released its fourth edition. D&D had released a new set of core books less than five years previous.
GURPS Martial Arts is in the US. They're only selling it at Gencon right now, and it's driving me insane. I bought it online about a month ago!