Let's say I have a day job that contributes to the majority of my income.
Now if I do some Android development (or similarly iPhone, Blackberry, or any other hobby that produces an additional income) and make some money by selling apps, how should I report this income on my taxes? Google takes a 30% cut, and gives you the rest without taking out any taxes, neither does Google report it to the IRS (unless subpoenaed).
What is the proper way to report this additional income on my taxes? Any other suggestions or advice regarding this matter?
Currently I have only one app that makes money via donations (< $20/month at the moment), but I do plan on making more apps for the purpose of actually producing an income.