3DS-PSP

It looks as if the Nintendo 3DS's design is finalized. The 3DS and PSP both feature some form of an analog stick (nub and nub-like thing.) The problem I see is that there lacks a second analog stick. This either limits the kind of games the handheld can have or makes playing it rather difficult, this statement is made with FPS in mind. There are several shooters out on the market for the PSP, and my opinion is that they do NOT play very well with just one analog stick.

Though the 3DS has a way around such a problem because of its touch screen (Metroid Hunters), an FPS could work out very well now since the 3DS has considerably powerful graphics. There's innovation, but there's also sticking with the familiar to allows those not too fond of new things to still game comfortably.

Which leads to the question. Would the 3DS benefit significantly with the addition of a second analog stick?