Only just, according to
GamesIndustry.biz, and it seems to be entirely based on Ace Combat 6: Fires of Liberation. Its released propelled 360 sales up to 17,673 (from 3,718 last week) ahead of the PS3's 17,434 (down from 18,785). Even if it lasts for a while it's unlikely to ever match the PS3's installed base and fairly constant sales. The Japanese market does seem very odd right now, with the 360 barely selling at all then getting these significant spikes around popular titles, but it does show that the 360 can make small gains into a very hostile market.