Mobile payments for donations?

I'd like to donate but don't have Paypal nor a credit card. I have seen other sites offering mobile payment buttons where, if I enter my number, the site texts me and, if I reply "Yes" then I can make my purchase/donation and get billed by my mobile carrier.
I'd love to see you implement this system so I could donate some cash to your project.
It's available here.
I've had a look and it's free to join and simple to implement. Your payments (donations) would be guaranteed by the mobile operators and it can co-exist with the current payment methods you offer.
Hope it's of use to you, let me know if you implement it so I can come back and donate - I love your Gallery!