Brilliant news! Coming via engadget.com, news that the PSP Slim firmware has been hacked after THREE DAYS of it's release is to be very well received. :-)
As they know more than I do about hacking, homebrews and the like, I'll just copy and paste what THEY say about it...
"Team M33 have just released their do-it-all custom firmware (version 3.6, for those keeping score at home), thus confirming Pandora's Battery as a "go" (amongst other things) on the new systems. If you understand what we're talking about, you'll be pleased to know that homebrews from the GAME, GAME150 and GAME360 directories load fine, though some homebrews written specifically for the 1.50 kernel won't run properly (due to some hardware and screen problems on the Slim)."