Eric Blue, an independent software developer, created a home automation system using Belkin WeMo switches, Twilio SMS service, and Siri voice control. He reverse engineered the Belkin Wemo API to create a Perl-based interface for controlling the devices remotely. The system allows users to turn lights on and off by sending text messages or using voice commands with Siri. Blue's hack uses a simple SMS server and a Perl API that can be easily customized to suit individual needs.