Increasing App sales with Analytics: Free apps versus trials

Since Sebastian quotes me I and supports the supposition that free w/ premium upgrade in great detail which has been more or less my mantra for several months I thought I would point everyone at his post(s):

Increasing App sales with Analytic's: Free apps versus trials: http://apps-are-people-too.blogspot.com/2011/06/increasing-app-sales-with-analytics.html

and also

Implementing Customer Feedback Forms AND fine tuning try/buy strategies with Runtime Intelligence: http://apps-are-people-too.blogspot.com/2011/06/implementing-customer-feedback-forms.html