I was at the Bethesda Apple store today and I did see the lines, but only if I was close up. I didn't get to use crankycat's page. I didn't think the lines were significant for my day to day tasks (writing, surfing, etc), but I could see how they might impact someone who does a lot of graphics work. (Note the "could" and "might".)
However, I was expecting to be blown away by the new screen though and I wasn't. Yes, the 15" is a nice big screen with lots of pixels, but so was the old one. This also looked dimmer than the old one, but maybe it was the lighting. I did reconfirm that the screen on the 12" is too small and the 17" is just too big - for me at least.
I'm ready to upgrade from my old TiBook and buy a new 15" PB, but frankly I have no idea what the hell to do - buy the new model, buy the old model cheaper, wait for something else - so chances are I'll probably do nothing. Still, I got to walk around Bethesda, so the time spent wasn't a total loss. 🙂