I just bought a PSP on Ebay but havent received it yet and dont know the firmware version. Like all new gadgets I buy I have been looking up mods and hacks for it. I think i have a good understanding of what iso's and homebrew are and how they work, but I do believe some of the info i have read is a bit out dated so I have a few questions. 1) I have read both: If i have firware version 2.01 or higher that i cannot downgrade it, and also that i can. Which is true? And do i still need firmware 1.5 for homebrew apps and ISO's? 2) If i can downgrade any firmware version, are the downgraders on www.psp-hacks.com reliable? I do not want an expensive brick! 3) To play Movie and Game ISO's do I still need firmware 1.5? 4) To run Homebrew games/apps do I still need firmware 1.5? 5) If i still need firmware 1.5, is it really worth it to not have the latest firmware from Sony? Thanks to anyone that can answer these questions for me. Like i said i have read alot but im not sure what info is still valid as of 6/19/07.