Very cool to see this pop up. I think a hosted service for validating an idea could be very useful for many, especially the non-technical founders who could then get some better validated traction to share with a potential technical co-founder.

Great to see Buffer has been an inspiration. If anyone is interested, the screenshot comes from this post with the full details of how I used this method to go from idea to paying customers in 7 weeks: http://blog.bufferapp.com/idea-to-paying-customers-in-7-week...