Yes, it's a USB device. You plug it into a Mac that lacks an IR receiver (like the MacBook, MacBook Air, or Mac Pro).i read about this i just dont get it! is it just a USB thingy i plug in and that's it?
Read the FAQ. http://twistedmelon.com/mira/faq.html#faqg4
It would look a little silly. But it's certainly doable.