I'm going off on a tangent here; while scanning through Robert's Subs library (nicely done btw) a question came to mind - How effective is the Freemium payment model with respect to Google Add-ons?
I wonder if we have any concrete stats available. In a more general sense, there seems to be a trend with small to mid-tier service vendors moving away from offering 'free' product tiers (Heroku being a recent example). Am I the only one noticing this?
I'd love to see Martin Hawksey and company cover this topic in a Totally Unscripted episode.