In the last few years, a bunch of online gambling sites have started releasing real money iphone gambling apps which are available to download through the online Apple App Store.
The main advantage of releasing gambling apps on the iPhone is that because it is so popular (an estimated 40 million units are expected to be sold in 2011) it helps casinos to pick up new players whilst also allow existing players to gamble on their iPhone on the move. This not only increases turnover and casino revenue through mobile games but it also acts as a USP or promotion for the casino.