Boo hoo... You proclaim that the problem with the iPad is the restricted environment for 3rd party applications, and then justify this by saying that the iPad would make a great multi-touch VNC client if only Apple would allow.  I say "VNC client" instead of mouse because I think this accentuates the lack of creativity on your part in dealing with what are quite minor restrictions.  Here are Apple's restrictions (simplified):<p><pre><code>  You can't write an arbitrary code execution environment.
  You can't publish someone else's software.
  Your software must carry an appropriate age rating.
  Hardware devices have to go through the dock connector.
  Only one app can run at a time.
  You cannot access the data of other applications.
</code></pre>
For a low resources, everyday user device, none of these are unreasonable.  You can even run unsigned code on any device you want, it just costs you a developer license.<p>BTW, there are already both traditional VNC clients and multi-touch "mouse" applications for the iPhone.