im buying a PSP pretty much just for this game.
i loved the first 3 games.

so im wondering if when i start playing this game ...am i going to be disappointed or is there plenty of stealth play as there is in SC, SCPT and SCCT?

I played the first level(tutorial basically) and part of the second.

I like it except for the horrible control system.

It is definately stealth. Of course the PSP is restricted to graphics and large level design to some extent but there are a couple of long missions. There's also a few sneaky spots and methods. Overall its fun, but as Aj6627 posted, the controlling is pretty bad lol. Splinter Cell isn't made for the PSP on the control side of things.

I borrowed a PSP to play it. It was ok, but loading and saving times were huge. 30-40 seconds easily.