The OnLive App for Android version 1.3 officially supports a very limited number of controllers including OnLive's own Universal OnLive Wireless Controller, XInput controllers like the Xbox 360 controller and the PS3 controller on the Sony Tablet S.
XDA Developers forum member Zathu has now hacked the current version 1.3 APK of the OnLive App for Android to theoretically allow the support of any Android 4.0 Ice Cream Sandwich and later natively supported controllers. He successfully tested it with a PS3 DualShock 3 controller over Bluetooth with the Sixaxis Controller App for Anroid.
You can get more info about the hacked version 1.3 APK of the OnLive App for Android at this link: forum.xda-developers.com/showthread.php?t=1906021. You can download the hacked OnLive App for Android version 1.3 if you follow this link: www21.zippyshare.com/v/4403332/file.html. If you have the official OnLive App for Android version 1.3 installed, you'll need to uninstall it before installing the hacked one.
Now that hopefully your PS3 DualShock 3 controller is working with OnLive on your Android mobile, you can buy the great GameKlip accessory to attach it firmly below your mobile and have even more fun with OnLive gaming on the go.
You can read more about OnLive for mobiles here.