How much can be made in a year? Who knows. iFart on iPhone makes a lot of money without much technical difficulty. Angry Bird makes a lot of money as well bu

How much can be made in a year? Who knows. iFart on iPhone makes a lot of money without much technical difficulty. Angry Bird makes a lot of money as well but with more sophistication. You will find out that it's not just coding that makes an app successful. Market trends, ideas, design, art work, coding, and luck all come into play. Phone apps seem to have price-anchored from $0.99 to $5.00. Users expect prices in those ranges. Android developers are in great demand, for working for the man. I've seen heavy recruitment from companies. Developing on the emulator can be done, but depending on the functionality of the app, more difficult if you have unusual input control or unusual UI. The trick is to mimic the screen size correctly on the emulator. It allows you to scale the screen. Make it about the same size of a real phone. Screen dimension can be tricky. There are devices out there with unusual dimensions, like 320x570. Make sure you test with different emulator screen dimensions.