Guy’s no app for Facebook is released for iPad but developers were working hard on this and now you can have it by the help of Cydia. So with out wasting time follow the steps to enjoy HD version of Facebook app

  1.  Hit Cydia
  2. Search Full Force (This Tweak is by BigBoss so no need to add any additional repository)
  3. Install It (Reboot, Optional*)
  4. Goto Settings > Full Force (Scroll Down)
  5. A list will be head up to select to run it in HD/Full Scree layout
  6. Select the app
  7. Goto SpringBoard
  8. Reboot/Respring

There you go and enjoy, but it will run with some of bugs.