A recent article in Tech Crunch (see link below) introduced a new company Apptopia that is getting ready to provide a marketplace for developers ready to exit from the app development field, starting in February.
Unlike some other companies that focus on selling some aspect of an app, such as Appslit, SmartAppsters, Chupa, Verious and Appcelerator’s Open Mobile Marketplace, Apptopia will be brokering the entire sale from the beginning to the end. Apptopia will connect the buyer and seller, work with the App Store to effect the transfer, even handle the legal documentation. Apptopia will take 10% of the sale proceeds. This marketplace is geared towards the apps in the price range between $6,000 and $15,000.
For more information, see below:
http://techcrunch.com/2012/01/05/apptopias-new-marketplace-will-help-broker-sales-of-mobile-apps/