Comment 2 for bug 839769

Hi Shane,

You are correct that this is a Unity "bug". By design, Unity uses three touch gestures. This precludes the use of three touch taps for other actions, like middle click.

We are working on a new architecture for utouch that may allow for this behavior to be restored, but that is a ways off at this time.

FYI, the utouch package itself is merely a meta-package for developers. If you have unity installed, then utouch is there too.