Install AirPrint for Windows The Easy WayJaxov
I'll have to keep an eye out to see if anyone's taken the space Collobos left open.
Printopia is still in business, though they've added a more expensive enterprise solution as well as the original app. But, it only works on OS X.
Thanks for catching that. I've been saying I needed to update my information on the state of iOS printing, and this shows my how very far behind I've fallen. *sigh*