Thanks a lot. I have posted it on a few forums for Wing Commander, as I thought there would be some demand for such a game on mobile. Got a few helpful and positive comments, but no money. Did not necessary expect to, it was meant more as an experiment.
The silly thing with this crowdfunding stuff is that projects that are already 10 times overpaid are still presented on the main page. Bigger projects mean more money for the platform, so I guess in the end, it's as commercial as everything else.
Edit: indiegogo uses paypal only, but it is possible to give with a credit card without registration.