Taking In-App purchases to mimic my iPhone app on Android

I have an iPhone application which is a reporting application, by this I mean, a user searches for a postcode, and gets information for free on that postcode. Then for a cost (about £1-£3) they can purchase a complete report.

I purchase the report data legitimately per request, and put 开发者_Python百科a markup on the price and deliver it through the iPhone.

I have been pulling my hair out with my android application as I can't find an answer on how to do the same for Google. Paypal has an API, but I am unsure if I will get approval in the market.

I don't care who takes their cut, be it Google through checkout (cant find anyway to implement) or PayPal, but my business model works by letting the user search for free to obtain basic data, and upsells them useful data.

It is now possible to do so :-) http://developer.android.com/guide/market/billing/billing_overview.html