Arduino twitter control CODE!

Hello,
Does anyone have any code on having the arduino search for twitter updates and then do something with it? for example:

If my status is: TURN ON LIGHT

Then it will turn on the light.

Thanks,
Elijah

Read the RSS Feed from the twitter account and compare the value of the update with an existing string and do something.

The reading and comparing of the twitter updates can be implemented with a PHP Script that is running on a webserver.

Your arduino board calls the PHP Script and reads the status of this script. If the status is true turn the light on.

To call the PHP Script you need to use an ethernet shield.