Customer Lifetime Value Calculator (randylubin.com)

I build a simple Customer LTV app over the weekend.

For more info on the topic:

My blog post about the app - http://blog.randylubin.com/post/15575039202/new-app-customer-lifetime-value

Fred Wilson on the topic: http://www.avc.com/a_vc/2011/04/ltv-cpa.html