Since a few months we have started accepting bitcoin donations. All bitcoin donations are handled through BitPay.
Everyone who donates $50+ may be recognized as an official XBMC Foundation donor in the forums. Because we can’t handle bitcoin donor status automatically, please contact us through the forum here after making your donation and be prepared to mail proof of your completed donation to us.
Alternatively you can donate by PayPal or wire transfer by going to the donations page.