Eric Chu over at the Android Developer Blog posted some additional details on the workings of the Android Market from the developer’s perspective.
Starting on October 27th, 2008, developers will be able to register themselves and then upload their applications to the Android Market. The one-time registration fee will cost each developer $25, which covers the cost of Google authenticating the developer. Once a developer is registered, though, future apps sent to the market will not need any further validation.
Right now only free applications can be posted on the Android Market, but starting in early Q1 of 2009 paid apps will be allowed. As mentioned before, developers get 70% of the selling price of the application. Google says that the other 30% covers processing fees and to the carriers. Google, for its part, does not receive a dime.