If you have Cydia installed, do this:
- SSH into your iPhone and place your .deb file in var/root/Media/Cydia/AutoInstall (if Cydia/AutoInstall doesnt exist, create it)
- Reboot your iPhone (Power Off, Power back on)
- Respring iPhone
- Done.
Thanks for the reply. Has anyone actually done this without any problems, especially on the 3gs? Also, just out of curiosity, what is point of using a .deb file?