I added the text messaging feature (specifying registered users only) to my userinfo page. A friend tried to send me one, but got a bounce message stating 'user unknown.' I then tested it myself and got the same message, so I e-mailed Virgin Mobile UK's customer service department.
Their reply said that they do not support sending text messages to one's phone via firstname.lastname@example.org or through any e-mail address; the destination can only be just the Virgin Mobile phone number.
As this is contradictory information than what is on the site of supported mobile companies, I thought I should a) let you know and b} ask if this can be changed/fixed so I can utilise this feature.
Thanks in advance for your help!