have a friend who has a stock iPod touch, never purchased the software upgrade from apple. I'm wondering if we can install 2.0.2 firmware I just downloaded from the web on the unit. I notice when I run pwnage tool (mac) that it searches for the hidden firmware files on my machine. i guess since i've purchased legit upgrades, so it just uses the firmware already on my mac. in the case of my friend, the firmware is sitting on the desktop, just downloaded from felix bruns. is the process any different and is there anything to keep in mind? can you buy apps from the app store, on an ipod with 'unofficial' firmware? can apple tell the diff?