The major changes that have happened in the world of online blackjack is that today. Most people play real money blackjack at mobile casinos. Many of the mobile casinos allow you to play games like blackjack right from your smart phone's internet browser. That means that you do not have to download and install a specific app. Of course this does depend on your exact model of smart phone. But if you have one of the major brands, there is no question that you can find a version of blackjack specific for the model. Some of the leading models include the iPhone, the Android, and the Blackberry. No matter which you are using, the game is the same and you can implement whatever blackjack strategy that you would even if you are playing in a land-based casino. The only difference is when you play online, you play when you want.