Telltale Games' Puzzle Agent [99¢ / HD] had an update hit the App Store mere moments ago that fixed the graphical issues we mentioned in our review. The graphics seem to be substantially improved, but this all comes at a cost- If you had any kind of save game data from playing the game previously, you will not be able to load it. After you update, when you try to load your saved game you're greeted with a game-ending black screen.
Puzzle Agent for the iPhone is still on sale for 99¢, and if you've yet to give it a try, this is a great time to download it now that our only issue with the game was fixed. (And as a new player not loading save game data from the previous version won't have any effect on you.) Puzzle Agent is a great mixture of Professor Layton-like puzzles and point and click adventuring. Check out our review for more information.