not seen in stores yet, but check out this review...
review @ amd3d
it's sick man, 3.3ns BGA ram. yet another one of those ti4200s that looks like a 4600 with the full length PCB, etc. probably gonna be expensive as heck too.
me, i'm looking at the EVGA 128mb with VIVO $169 shipped from newegg... looks good...