Rich, thanks for the question and, wow, Wayne, I did not know any of those "shorthand" means of communicating.
Frankly, I'm a bit tired of the use of acronyms designed to circumvent the use of good grammar. I'm with Sean and tend to assume that the other agent reads my messages via email rather than through texting. Thus, I send completely worded emails to my clients and to other agents. I'll try to remember your shorthand text notes, Wayne, but, for the most part, I use emails.
Grace Morioka, aka "The Anti-Texter"
Area Pro Realty
San Jose, CA