The site says $99, however, upon clicking preorder, we see it costs $450 without a contract. AT&T of course says, "*Requires 2-yr contract with qualifying voice and data plans. Activation fee applies." So this cool little idea just got a whole lot more expensive.

I say wait for the rom to leak, and then dual boot it on a new Nexus 4.

UPDATE: Sorry, I misread, this is just an overlay. Still though, the point still stands.