I downloaded the demo for the PS3 and was somewhat less than impressed. The graphics were impressive, as expected from anything on the PS3 and a Full HD picture. Still, as we all know, graphics aren't at all important when comepared to gameplay and storyline. The gameplay seemed typical 3rd person stuff, so was nothing new. I liked the idea of playing as Darth Vader's apprentice, but not enough to plunk down US$60 for.
All in all, it's about as impressive as the Halo series. Not bad, decent, run-of-the-mill, and mediocre. Still, I might buy it for PSP if it retails at the same US$40 price as other PSP releases, and maybe for PS3 after they knock off about half it's price tag.