There are lots of possibilities to support the myPod project. Here is a list of some of them...
The most simple one is just to leave a message at sourceforge whether you like myPod or not, got it running on a special platform or whatever you mind.
If you want to engage in the development of myPod, there are lots of possibilities. Just contact the myPod team.
Since the development of myPod takes lots of time and other resources you can support the project by making a donation. They can easily processed via PayPal.