Actually, this was released just last week. I wrote about it (in the update section) here: http://portrix-systems.de/blog/brost/ovdc-1-2-for-ipad-released/
Or you can download directly from here: http://www.oracle.com/technetwork/server-storage/sunrayproducts/downloads/index.html
We have tried this on several phones and it did work ok. Just was not very usable on a tiny screen and we have not tried this on an android tablet yet.
This is very usable on my Sony Xperia tablet using bluetooth mouse and keyboard, but both my bluetooth keyboard and the onscreen keyboard just produce a '6' in a cmd window, no matter which key I press.