The adapter works on my i9300 but the type A USB connection is very poor and seems shallow ie anything you connect disconnects very easily. Can't expect much for the ridiculously low price but if I decide to use this function regularly then I will purchase another cable.
I tried Keysonic (good) and using my SGS2 with Unified Remote to control my Revo and this is easily the best option thus far. Trackball works far better than a trackpad and the battery life seems very good to date as I haven't had to change the batteries. Would recommend to anyone looking to control PC from the couch.
A full charge is just enough to inflate a double air bed, didn't have enough charge to deflate although you just sit on it for speed anyway! You can't use the pump when it's charging so really only good for camping when you have one bed to inflate. Couldn't recommend.