Fix iPad Screen Resolution
I installed a rogue app in my iPad 1 and suddenl my screen resolution got messed up with keyboard in iphone size and icons all spaced apart and colors tearing up when launching apps. I tried itunes restore, reset homescreen layout nothing helped. At this point I was dissapointed thinking that the only fix is to do a full restore and start installing apps again. Then I came across an article on the web which helped me fix this. Tou need to be jailbroken and have iFunBox installed in your PC/Mac.
Open iFunBox and navigate to /Library/Mobile Substrate/DynamicLibraries. Inside this folder, delete anything you see and restart. Voila now you will have te original resolution restored on your iPad.