Rahman Ismail, chief technology officer for the USB Implementers Forum, announced today that USB 3 ports will be coming to smartphones and tablets by late this year or early next, likely using the MicroUSB standard port, PCWorld reports. However, USB 3 transfer speeds on mobile devices will be significantly slower than the theoretical maximum of USB 3, up to perhaps as high as 100MB per second, still much faster than USB 2.0.