PCWorld reports that the app store or Windows Phone Marketplace, which was introduced months ago, is described as a place where users can download software and updates for Windows Mobile 6. But, with the Windows Phone 7, there will be a new set of policies governing the Marketplace.
More specifically, when it comes to content restrictions, the new guidelines say apps containing sex, nudity, provocative images, porn, sexual fetishes, or basically anything that “a reasonable person would consider to be adult or borderline adult content” will be rejected from the Marketplace.
Also, developers will have to pay $99 per year in order to submit applications and unlimited paid apps. They can submit up to five free applications (additional applications will cost $19.99 each). The paid apps feature a 70/30 revenue split, which is the same deal Apple gives its developers.
Windows Phone Marketplace offers some options not available for Apple developers such as a “Trial API” option. This lets users try out apps before buying them.
The Marketplace also allows developers to use a range of business models, including free, paid, ad-funded and “freemium” (which cost extra, but basic features are free).