VGChartz reports that the first day sales in Japan for the new games released on Feb 28th, were as follows:
First Day Sales : The numbers in () shows the shipments info.
Gundam Musou Special (PS2) : about 76k (about 150k)
Soma Bringer (DS) : about 37k (about 75k)
The Idol M@ster Live for You(360): Limited edition about 28k (about 35k)
Normal Edition about 2k (about 10k)