The man behind the popular iPhone game iShoot is Ethan Nicholas 30-year-old computer programmer. He wrote the game by spending about six weeks, holding a bottle in one hand and coding with another. He wanted to make a decent money by selling it for $2.99 per download. Did he expect that it would earn him a fortune ? I don't think so.
This programmer was earlier employed by Sun Microsystems. On January 11th he gave his two weeks notice to Sun Microsystems. He earned a whopping $37,000 before taxes on a day when his best sale in a single day. He said there were more than 17,000 copies of game on that day. That implies he earned $2.17 per copy.
The iPhone games have become a new source for good revenue. Even if you develop a game for $3 per copy and it makes at least 5,000 copies in its lifetime then you should earn no less than $10,000. This opens up a huge scope for new developers to get in and earn some quick money.
Give it a try and let me know if it works for you.