You Are Not a Gadget is a manifesto in the starkest sense of the term: Lanier fully articulates his final and somewhat absolute break with the open source movement typified by what he describes as the "Libertarians" of Silicon Valley and the proponents of Web 2.0.

ENGADGET: Book Review: You Are Not a Gadget Alt

Naturally, it's also designed to be fully hackable and customizable (both the hardware and software are open source), and it even includes some strap mounts so you can wear it like a keytar.

ENGADGET: Pianocade synthesizer lets DJs practice their shoryuken skills