Just wanted to drop by and let everyone know you can pay with Darkcoin at
http://www.bitsms.eu.
We also accept Bitcoin and Guldencoin.
Nice service - btw, would it be possible to get a reply too?
When you send a message to number XYZ, you'd get a unique id (guid) and could use that id to access a page that would show messages received from the number XYZ within 10 minutes after the message that was sent.
I have a few services I'd like to send messages and they send immediate (within seconds or minute max) replies so that would be handy if your service could handle that.