PSFreedom Android - Nexus One
See the above, info just released on how to do it!
This will disable your ability to use USB storage on the phone!
Here you go, Instructions too...
and place it's contents onto the root of your SD-card.
Then download my flashable boot.img
Place that on the root of your card, Reboot into recovery and flash the PS3-signed.zip
Reboot your phone.
Launch terminal emulator...
Then type the following...
Now turn your PS3 off at the wall, and plug in your phone.
Turn the PS3 back on at the wall.
Press the PS3 power button followed by the eject key in quick succession...