Teleflip. A kind of email to cellphone switchboard. Very clever, but US only at the moment unfortunately. I suppose the advantage it has over SMS is message length?
‘The next time you need someone to email you directions, a recipe, sales information, or maybe just a few sweet nothings… tell them to TELEFLIP it, at: (yourcellphonenumber)@teleflip.com. It’s easy. It’s free. It’s for your phone.’