From NeoGAF (Chris1964):
(All Famitsu data)
PS2 in its first 4 weeks sold more software than Vita in its first 8 months
GBA in its first 2 weeks sold 85% of software Vita sold its first 7 months
GCN in its first 7 months 2,5 times more software than Vita for the same period
XBX in its first 8 months sold 50% of software Vita sold at the same period
After 7 months in 2012 3DS has sold more software than the entire 2011
3DS is the top software seller this year with more than 30% share, Vita less than 5%, 360 has half software sales of Vita
NDS has sold more software than PSP this year
Edit: New info: H1 Wii software sales = 2,5 x Vita







