TweetControl: Control Anything with Twitter (community.thingspeak.com)

I just added documentation for a new ThingSpeak app that allows you to control a device or send data to an API triggered by a Twitter hashtag. It's called TweetControl. Anything that is controllable with an HTTP-based API can be driven by TweetControl. #thingspeak #turnlightson - Any ideas on how to use this for the Internet of Things?