I bought the Mini Rii over a year ago, and maybe I've got a bad one, maybe I'm hard on it, but it didn't last. The quality isn't great, and once the battery starts to die it gets wonky. In the beginning recharging fixed it and or cycling the power switch, but now it takes several key presses to make it wake and respond.
The power cycling wasn't a big deal, and I didn't mind, until the microscopic switch's thumb knob fell off and was lost forever. Now I need a tooth pick or paper clip to cycle the power.
Another thing it does is lose it's mind on the cap lock. Sometimes it will cap lock, without the cap lock light on, and you have to turn cap locks on (light comes on) to get lower case. If that makes any sense.
The touch pad is also less responsive now too.
It didn't cost much, but I still expected it to hold up better than it did. This is just my experience, so take it as you will.
At this point I have a half working PC remote, and great laser pointer for the cat.