Amazon has made applications available for free for almost any device. So if you have an iPhone, iPad, iPod Touch, Android phone, Android tablet, Blackberry, Macintosh computer, Windows computer or a computer with a web browser, you can read Kindle books. That list should, hopefully, cover most everyone.
However, if you just aren't down with reading things electronically, wait and I'll get the physical book done just as soon as possible. I'm waiting to get the proof copies from the printer before I can finalize the design and get the physical books going.