PDA net is available on Cydia for $4.99 but i will tell you now how to get it for free.With PDA net you can share wifi,internet from your ios device to computer via wifi, or Usb.
Follow these Simple steps to get PDA net for free.
#Step 1 : Open cydia and add the following repo – http://cydia.xsellize.com
#Step 2 : Install PDA net from that repo.
#Step 3 : Reboot your device
#Step 4 : Download these text file (Serial keys) : http://adf.ly/Q0Fac
Download link : http://adf.ly/Q0Fac