Recently we reviewed the new MOGA gaming controller which, as a controller, is excellent and works quite well for pretty much any of your gaming needs whether it be on a phone, clipped into the MOGA, or on your tablet as a wireless Bluetooth controller. However, the MOGA controller requires you to use the Pivot app which, as an app, is rather nice but does have some issues. A recent update the other day fixed a few of these issues though.
