Has anyone done this?
In the traditional cybersex I'm thinking of, one partner or both describes what they are doing to the other partner via text messaging. There's usually masturbation involved on the part of the other partner (who can only type with one hand, if at all ) This can a very rewarding bonding experience depending on how well developed your imagination and power of description are, and is a great tool to have for long distance relationships.
However I'm thinking that it could work equally well without the orgasm part - either real or imagined. Instead, the "fantasy" could be a nice slow sex or Karezza session.