Okay, since I am quite a bit farther along than  ben-abuya with the module. I will be posting my version here shortly this evening.

I currently have the admin backend where you configure your RPC URL, and I also have the payment block that shows the visitor what address they need to send payment to, which is dynamically generated for each checkout session.  Obviously more features are needed, but this is a really good core for it.  My only concern is one of the other developers grabbing it and profiting, obviously that wouldn't make me feel good about the time I put into it.