Microsoft is resorting to seiyuu cleavage to promote Kinect, with Aya Hirano providing the glamour and several other seiyuu providing the cleavage.
Aya Hirano presents Asami Imai (IdolMaster’s Chihaya) and Yumi Hara (IdolMaster’s Takane):
A possible reason Hirano did not join the other seiyuu in bouncing around seems to present itself.
Microsoft seems not to realise that the majority of creepy seiyuu fans live in one-room apartments which can barely accommodate their vast collections of figures, let alone the vacant plateau required by Kinect.
Official sales figures for Japan are hard to come by, but estimates based on the numbers reported for bundled software so far suggest under 30,000 units sold, and not a single Kinect title made it into the Japanese top 50 for the last 2 weeks.