So popping around the web today I came across this little tidbit. If you send a someone with a Blackberry a message with the subject line containing the <confirm> tag, you will get a confirmation of the delivery when the message is delivered. Here's my test and confirmation:
and here is the confirmation:
I'd love to credit the blog I just took this from...but I kinda lost my place in the excitement! Sorry man.
Enjoy the tasty messaging goodness!