Sony has "no plans" to address the horizontal scan lines appearing on PSP-3000 screens.
"On some occasions, scan lines may appear on scenes where brightness changes drastically, due to the hardware features of the new LCD device on PSP-3000," says Sony US in a statement on Joystiq.
"Installed with this new LCD device, PSP-3000 offers more natural and vibrant colours on its screen, but the scan lines have come out to be more visible as a result of improving response time to alleviate the afterimages on PSP-3000.
"Since this is due to hardware specification, there are no plans for a system software update concerning this issue," adds the statement.
The PSP-3000, released here last Friday, also features a built-in microphone, a better power cable (yes this is important), and slightly firmer and more pronounced buttons.
We know all this because we picked the new hardware apart for our curious readers recently. The summary: quite good actually, but not dramatic enough to immediately ditch your PSP Slim & Lite for.