Some Telltale games are 99 cents on iOS until the 29th. I have no idea if this is US only or what.
Hector - Episode 1: We Negotiate With Terrorists - iPad
Hector - Episode 2: Senseless Acts of Justice - iPhone - iPad
Hector - Episode 3: Beyond Reasonable Doom - iPhone - iPad
Puzzle Agent - iPhone - iPad
Puzzle Agent 2 - iPhone - iPad
Sam & Max - The Penal Zone - iPad
Wallace & Gromit: The Last Resort - iPad
link to Telltale's site which has app store links