Cool app, its one of those tile puzzles, only with numbers. Best of its kind out there, its missing one or two features, but I talked to Laboratory 013 studios, and they said they were going to add them in over the next couple updates.
LINK : http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=290823542&mt=8
LINK : http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=290823542&mt=8