PlayStation Mobile is Sony's new mobile games platform that aims to provide a PlayStation experience on a variety of mobile devices such as the PS Vita and PlayStation Certified mobile phones and tablets. The main draw of PlayStation Mobile is that users can purchase games from PlayStation Mobile, and play it on various devices without the need to purchase additional copies of the games.
For those who can't wait to try out this new platform, the good news is that Sony has launched PlayStation Mobile in North America, Europe and Japan. To start purchasing content, all users need to do is to sign in to their Sony Entertainment Network account and use your PSN Wallet to purchase PlayStation Mobile content. Games that are launching with PlayStation Mobile include Super Crate Box and Loot the Land.
Source: PlayStation Blog.