I guess this is the great usability test isn't it?

From This made me cry (FSJ)

[the comments on FSJ are worth reading too]

Found part 2 on youTube

i have a general question. Are you able to put custom desktops on the iphones?

help

you mean desktop backgrounds? You can pretty much do anything if you jailbreak the phone.

Just visit jailbreakme.com and it should install the Installer.app which will give you a host of applications to install.