Update Checklist

Current Update:
Fix multitouch bug. DONE (needs testing)

Create new graphics for the interface. DONE
Test and Tweak the zoom/scroll feature. DONE
Fix the "Sell" achievement. DONE
Fix the sound engine to co-exist with iPod music. DONE
Modify the texture engine to make room for more graphics. DONE
Scale the enemies to twice the resolution. DONE
Build/Upgrade animation. DONE
Modify (or replace) the towers to show a different graphic for each level. DONE
Enhance all missile graphics and such. DONE
Re-add the title animations. DONE
Add toggle for two interface mode. DONE
Nerf a few levels, mainly 5p/5m, and the easy/normal/hard challenges. DONE
Restart option in-game. DONE
Fix zero-score astar error (trap mobs for high scoring). DONE
Fix "Spiritual Conflict" goals. DONE
Reduce cost of Lightning tower level 6. DONE
Clear "Player x" when entering new name for a profile. DONE
Fixed nasty resume bug (poisoned enemy dies during resume). DONE
Reverse the speed toggling (normal->slow->3x->2x). DONE
Remove the start-up kissing sound in certain situations. DONE
Medal error by surrendering (should be no medals saved for surrender/loss). DONE
Add grid display option. DONE
Fix placement off-screen bug (slippery placement). DONE
Fix life display bug when resuming game. DONE
Enable zoom-in drag only if zoomed all the way out. DONE


Future Update:
Back button for the stats book.
Add "select square first" build mode.
Enhance the map graphics.
Improve help system.
Move the level data to files.
Add more levels and challenges.
Add more achievements, or at least achievement levels.
Re-do the achievement graphics.
Enhance the high-score list.
Path graphic on the level select screen.
Retry option on the score screen.