Well...looks like Sony messed up yet again! Yes indeed those are scan lines you are seeing on the brand spanking new 3000 model PSP. When confronted about the issue, an SCEJ representative responded with...
"the interlacing-like lines are just "features" of the new LCD, and currently, there are no plans to fix it with a future software update since it is in the hardware."
I guess a lot of people who were considering purchasing this new model or asking for it for the upcoming Christmas holiday now have to think about if this is something they're really willing to live with. This Means when you Record a Game With a Camera the Line will Show When you Record Which mean it will mess up the recording.