Hi,
Yes I have been there before.
You need to go to the android store and get BluezIME.
This software acts as a handler for your zeemote. When you install it go to Language and Input in Settings and select it.
Press the BluezIME configure tab and scan for the Zeemote. Hold down the top button to invoke scanning on the Zeemote.
Once it has detected it and paired (if you have done this already) you will have to open up the browser and tap the URL space and hold your finger down until Android asks you which device you want to default for input.
Then just map away.
Like I said I have been there and done that and it might work for you but if it doesn't you can look at a JXD S7300 or JXD S5110.
Incidentially I was cruising around looking for an Atari to USB adapter and came across
this by accident. Actually I was looking for this similar device a few months ago before I bought the JXD S7300.
It might be more up your street than the zeemote.
Let us know how you get on!