vnc for Android is an application that connects remotely to most vnc servers as Tight vnc, RealVNC on Windows, Linux and Apple Remote Desktop on OS / X directly from your Android smartphone.
To use the software, just enter the parameters for connecting to remote vnc computer: alias, password, address, port and color modes.
While connected, you can send text, resize the page and select various modes of entry such as:
* Overview cursor touches and larger;
* No cursor, mouse, trackball;
* Mouse pointer control mode
* Cursor touches; trackball mouse
* Cursor touches; panoramic d-pad
More detail from here VNC Viewer for Android released
Check the full detail here Reviewed application Droid VNC server for Android by Julyano87