It supports Bluetooth keyboards, but only for alpha-numeric keys, so whats the point?
Also, theres no method for directly manipulating the cursor, so you can only touch to click on things. How are you supposed to hit, for example, the close button on a window without hitting the minimize button? Are you expected to zoom in every time you want to click on something? Other apps like Remoter that allow you to use the screen as a touchpad are much more effective.
This does have a very nice UI, but I just found it unusable for actually getting anything done on the remote computer.
Aikinai about Screens VNC - Control your computer remotely