Vegee lets you use your Synaptics TouchPad as a MIDI controller. Choose a MIDI output device, click the pad surface and start to control your MIDI device.
In fact, you don't have to have a Synaptics TouchPad to use Vegee; it supports also regular mice.
Here are some features of Vegee:
Vegee is not a seperate MIDI input device. However, you can redirect Vegee's output to an input device using a MIDI loopback driver, such as LoopBe1.