System on a Chip (SoC) devices, such as the Raspberry Pi and pcDuino, are becoming increasingly popular. They almost always have a working Perl installed, and some library for controlling the I/O pins. Wouldn't it be nice to unify the API across devices? While we're at it, why not add a REST interface, too? The Device::WebIO modules do exactly that, and this presentation will show you how to use them.
This is also the 20th anniversary of Perl. There is a rumor of cake.