Sony has responded to the issue concerning scanlines on the new PSP’s (see below).
SCEA
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. Installed with this new LCD device, PSP-3000 offers more natural and vibrant colors on its screen, but [...]

One of the prominent features of the PSP-3000 is the updated screen giving more colours and less ghosting. Here’s one problem new PSP owners didn’t count on, scan-lines. This actually makes things look worse than the PSP-2000.
According to a thread at the PlayStation Forums, it is a widespread problem. Sony is currently looking into the [...]

Japanese site PC Watch has provided a whole lot of pics of thee PSP-3000.
The site shows us the inside hardware of the PSP as well as the close-ups of the system.
PC Watch has gone all the way and has literally stripped the PSP, taking out the screen and motherboard.
Check it out here.

The good news with the bad. Good news is the PSP-3000 ships with a TA-090 motherboard, the bad news its using a newer CPU and is its not booting up when used with a Pandora battery. Thus its Pandora proof and service mode can’t be accessed to flash custom firmware. Which suggests that more hardware [...]

Dark-Alex has had a look at a pre-release PSP-3000 in Spain and has confirmed what most of us thought, that the PSP-3000 system is Pandora proof at this stage. Universal unbricker / Despertar del Cementerio v7 doesn’t work. Dax comments that this is no doubt due to the fact that the PSP-3000 series must be [...]

Eurogamer had a hands on with the new PSP-3000. They have stated that the PSP-3000 will come with PSP Firmware 4.20 pre-loaded. This firmware will have a USB auto connect option that will automatically start charging the PSP in the XMB when a USB cable is inserted. Also a Colour Space setting has added in [...]

The box art for the “PSP Brite” has popped up on Amazon.
Notice anything?
 
More in the full article.

..but guess what? Its not Japan exclusive this time. That doesn’t mean it’s a good thing though because this bundle is for the Koreans.
There a 3 options:

“DJ Max Package Limited Edition” includes the PSP-3005* (Pearl White), DJ Max Portable Clazziquai Edition game, a music album, speakers and a bunch of PSP accessories. ~$245US*
“DJ Max Package” includes [...]

You guessed it. Japan is getting another customized PSP that nobody else gets. Why we don’t, I’ll never know. But then again, would I really pay for another PSP anyways? Maybe, but let’s get on topic. The new PSP-3000, nicknamed ‘Brite’, model is Gundam themed. And as you might have also guessed, it’s part of [...]

Famitsu.com have discovered some minor changes in the new PSP-3000 models firmware. Although nothing to major its interesting to note.
The PSP-3000 has a setting for “Color Space” under the system settings section of the XMB. This can be switched between Wide and Normal. Wide exploits the full color depth of the revised hardware, while Normal [...]

Good news everyone… (imagine Prof. Farnsworth voice)
On a PlayStation.Blog post by John Koller, it is noted that the PSP-3000 battery life isn’t going to suffer like previously mentioned.
Quote:

Hi, everyone, there have been reports about the battery life of the new PSP system (PSP-3000) being shorter than the current model (PSP-2000), following an interview we recently [...]

According to SCE America marketing manager John Koller the battery life of a PSP-3000 will be decreased by 20-30 minutes. Why? Well that prettier LCD screen is at the cost of battery life. Whats the beat that 20-30 minutes is on the Dimmest setting? I wonder if it would be 20-30 minutes on full bright [...]

Japanese gaming blog, Famitsu has gotten their hands on the PSP-3000 and has compared the two for us.
One of the most recognised differences is the screen as you can see in the shot below:
The colours are supposedly more vibrant and the new screen contains less glare with reduced ghosting.
More comparisons after the jump.

New info is out that the PSP-3000 will feature an LCD screen with a response time that will be twice as fast as the current PSP models. Which means less ghosting and color bleeding. It will also have an LCD five times the current contrast ratio and double the color gamut.
This is all nice, but [...]

Photos of the new PSP-3000 just announced.

Didn’t take Sony too long now did it, the PSP-3000 has been officially announced at Games Convention 2008 in Leipzig. Sony president David Reeves announced that PSP-3000 will go on sale this October, starting on the 15th, it will have a price of 199€ and will be a bundle pack including a 4gb memory card [...]

Looks like the PSP-3000 rumors are indeed true as a FCC listing confirms that Sony is working on the new PSP-3000 model. This doesn’t however confirm the PSP-3000 spy photos released earlier are true or not. But it does confirm that Sony do have the new model in the works.
So when will Sony break the [...]

Has Sony started PSP-3000 production started in China? Yes! According to one major Chinese PSP Forum. They have apparently gotten hold of some photos of the new PSP model, dubbed the PSP-3000. Much like the revised PSP-2000 (Current model) this new revised unit features a new PSP logo UMD drive logo, has a new PSP [...]