Capcom has announced Street Fighter x Tekken Mobile.
The iPhone, iPod Touch and iPad game launches this summer.
Capcom likened it to Street Fighter 4 Volt, "but with tag mechanics and a healthy dose of juggling". It's based on the home console version but with a "complete redesign" of controls and UI with mobile devices in mind. Expect brand new modes and a "new take" on the tag team mechanic.
It works with iOS 5 or higher, which means it's playable on iPhone 4/4S, iPod Touch 4th gen or late, iPad 2 or the new iPad.
The first screenshots are below.