Here are some recent (and most likely temporary) price drops. Grab the savings while you can as some of these deals may not even last the weekend.
AirBear (99¢ -> FREE)
Cell Splat (99¢ -> FREE)
Cooking Mama ($6.99 -> $3.99)
Enigmo 2 ($2.99 -> 99¢)
Freaking Inkies ($2.99 -> 99¢)
Geared ($2.99 -> 99¢)
Puzzloop ($7.99 -> $2.99)
Puzzloop Endless ($1.99 -> 99¢)
R.O.S.M (Revenge of the Summon Monsters) ($1.99 -> 99¢)
Space Miner: Space Ore Bust ($4.99 -> 99¢)
Puzzloop Strategery ($1.99 -> 99¢)
Tom Tom U.S. & Canada ($69.99 -> $49.99)
Volley ($2.99 -> 99¢)