This is my first hint, and it is really a trivial idea I had. I thought it would be neat to send a text message from Terminal using curl. So here it goes:
curl -d "from=$1&min=$2&msg=$3" \
http://www.cingularme.com/do/public/send
This is all on one line, of course (but with the backslash, copy and paste should work). Name the file curlsms, change the permission to allow execution (chmod a+x curlsms), and place it in a folder of your liking. To run it, navigate to its directory and the usage is:
./curlsms sender 1234567890 Message text
Replace sender with your name, 1234567890 with the recipient's phone number, and Message text with the message you'd like to send. I'm sure some of you super-creative users could integrate this into AppleScripts and do some really neat Mail rules and all that business with such a script.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20060913202617195