There are 30 levels with different background pictures (I´m a amateur photographer) and I needed to include Ipad3,2 and Iphone3,4 and 5 versions for all levels. The music is standard wav.
I am thinking about putting the images on a server and only keep a iphone5/ipad2 version (e.g. 768x1136) in the app. That way the app works without network, but could download larger or smaller images if it has a network connection. It would easily reduce the app size to 1/4th its current size.
If you find any bugs (well, the in-app store seems to be broken in 1.2, but premium should be out soon), please let me know. Version 1.3 will be out in a week or two with easier gameplay (easy, medium, expert; current is expert) and some bugs fixed. The freemium-model will also be expanded to include higscore and easier to buy levels without paying (you get more coins from ads).
Any suggestions is also nice. I am thinking about a “ball combat” level in which two or more players join to compete and help each other out. Alot of kids like to play with friends (at least mine) and you cant compete with Clash of clans without it.