Long story short, there's now a flash section in the PSP version of Newgrounds (PSP users, point your PSP browser to newgrounds.com/psp, rather than the URL you might see if you click the PSP links at the top of each page on the site when on a computer).
Now, the Devil's in the detail - many users have been crying out for a PSP version of the flash portal after PSPhacks.net offered a homebrew version of a flash player that would operate under firmware 1.5. I never got to check their hack for the flash player, given that I'd already updated firmware to 2.60 (and couldn't downgrade) on my PSP.
They're (PSPhacks.net) still working on later versions of flash that will run on 2* firmware and above. Many more users have been crying out for a PSP version of the portal since they realised that the official Sony firmware update of late includes the flash player, so this is an answer to those cries.
The firmware update 2.70 is supposedly a global release, yet, I downloaded the update marked as 2.70 (not from the US website, given that they state there that the firmware update is just for people who've purchased PSPs IN the US, I'm able to connect my PSP wirelessly) and yet I'm not able to see any flash content on my PSP... So I'm guessing that that's because the update I installed is European and came from Sony Europe, who might not have included the flash update in the firmware upgrade. Whatever...
The point I'm trying to make, is that if you're in Europe and you're on version 2.70 of the official update, then you might not be able to see the flash content in the PSP section of the site.
People who have the homebrew hack from PSPhacks.net should be just fine, wherever they're located!
There's another spanner to throw into the works with all of this, btw - the PSPhacks.net version will handle flash player 7, the official firmware version will handle flash player 6. To keep things global, we're going with only flash player 6 files at the moment.
One more spanner - any file over 1.1Mb seems to throw the PSP into a state of despair, so if you're expecting EVERYTHING from the portal to be available through the PSP, sadly, you will be disappointed. And another spanner - many games don't translate too well at the moment, so for the time being, we're just using movies.
I haven't written it enough. Spanner.
Oh, by the way - the audio section that's disappeared from the PSP layout - that isn't because we're not going to do something with the audio portal and integrate it into the PSP section - it's just that streaming the content direct at the moment isn't great (the PSP freaks out at 1Mb files, or thereabouts) and many of the audio portal subissions are way over that filesize. We also haven't decided what to do with respect to audio downloads, although that is in debate.
Anyway... Sorry for the long post.
Thank Stamper for the groovy PSP flash layout. No, really. Thank him.
Please feel free to post bug reports with the PSP stuff, too.