Jet Set Radio HD will be releasing this summer on PC, PS3 and XBLA. And it's about time too, frankly, since Jet Set Radio Future's Xbox 360 backwards compatibility is really patchy.
Anyway, this new trailer shows off the retouched graphics, timeless cell-shading and eclectic characters to advantage... and features 'Rock It On' by Hideki Naganuma. Who is a musical genius. Go watch (and listen to) it.