This was inspired by a short discussion on Twitter between mperham and patio11 last weekend.[1] The basic app works great right now but I haven't put the billing code in quite yet. If you're interested, sign up for the list[2] and I'll send you an invite (with a discount) when it's ready to go.
https://twitter.com/mperham/status/436976217443422208
http://www.pagesnap.io/list-signup