1. Congratulations on the extremely sane privacy policy. Easily understood. Practical.
2. http://txt.gs doesn't resolve.
3. There have been times I wanted to send text messages without exposing my phone number. Benign reasons. This could be a good solution for me. (I carry two phones and want to text someone from the "other" phone which of course I don't have with me and I don't want that person to know the phone number of the phone I have with me.) (So when I say "I carry two phones" I of course mean I constantly forget to carry two phones.)