My bad, totally missed it. A better clarification on my part would have been "sell early access to a mailing list via monthly subscription which becomes a monthly subscription product".
If there was a beta available, all the better.
Either way, the customer knows exactly what they're getting into.
That's the example pg gave about InPulse. And hell it worked great.
http://www.kickstarter.com/projects/597507018/pebble-e-paper...