I don't think Sony should scrap the PSP2 - but they should hold off another year or two.
As a developer, what are you going to go with? Nintendo has blown everyones mind and the DS has already sold millions. If the PSP2 went head to head with it they would not only get crushed. However, even though the PSP 1 is old It's still most likely cheaper to develop for since It's been on the market so long, so companies will still develop for the PSP1 as long as they can sell their games on it till it dies. Japan right now seems to be the biggest supporter of the PSP, and games like Monster Hunter and Phantasy Star sell a stupid amount (hell even Persona Portable sold really well).
Now, in the next few years Sony should be working on the PSP2 and lowering development cost, as well as making it as powerful as the 3DS. That way when the 3DS is 1-2 years older they can release the PSP2 and it will gather more peoples attention as a new system.
It's just that simple.









