Johannes Schluter has posted about an interesting little project he's worked up to find his own path to usefulness in Twitter - a PHP extension that tweets bugs to his account.
The other thing I see there are people telling me what errors in their applications they are currently fixing. I can't see why that's interesting. But as people seem to be interested I found out that I have stuff to say, too, or better my PHP has, since sometimes I have errors there, too. But well, I'm lazy so I don't want to "twitter" them myself.
His "little PHP extension" that automatically sends the reported error out to the designated account. Of course, it tends to slow things down (connection to a remote machine and all) but it could be useful for sending an SMS is something pops up.