If you are an Android/Java Developer, you can develop a plugin to support your favorite transportation network. Just tell me and have a look at the necessary interface.

If you are a public transport association, you can provide a REST API for routing and live departure times. This can be used by Öffi (and other projects). Please tell me and I'll provide you with a proposal.

If you happen to own an old Android 1.5/1.6 device that you don't use any more: I'm in need of a testing device for those old SDKs. Of course I'll send it back at any time in case you need it.

I've received some questions of how to donate money. It's perfectly ok to use Öffi for free.