"This VSTi is temposynced and produce RAVE sounds that terrorists and imperialists are so afraid of!" I'm not sure how new it is (Bush + Bin Laden + Synthedit = so 2002) but I'm very excited by BuushLaaden 2 from Dr Tikov, the guy who made the Jew's Harp VST. It's actually quite interesting - two oscillators, two filters, a kind of weird choppy gate effect. (BTW, Dr Tikov's site is incredibly slow, but does seem to work. Just imagine you're on a 28k modem and wait for the page to come down.)