Despite good HW sales in total the PSP software has been completely dead outside of Japan for many years. I since the PSP2 will suffer of that. The third parties will not back as much a console where the sales have been so disappointing software wise.
The 3DS will win the console war, I think it's already a given. It has everything on its side. So I think the PSP2 will not get as many games as the 3DS as the 3DS is getting all the support that the DS lacked due to his limited power. All third parties seem ready to make the 3DS the next standard.







