WP7 Marketplace will support fullly-featured trials of paid apps; no porn.
Microsoft recently released their ‘application certification requirements’ for Windows Phone 7 Marketplace, and Ars Technica were quick to deduct the long term form in small, digestible chunks.
Microsoft’s terms, for the most part, seems pretty standard – especially when compared to application submission requirements for Android Market or Apple’s App Store. However, there a few exceptions to the scene: a developer account will be priced at $99, which is on par with an iPhone Developer account and slightly more than Android’s $0 price point. The $99 will net developers unlimited number of paid application submissions and 5 free-application submissions per year; additional free-app submissions will cost $19.99. This should help keep “submissions of junk applications” at bay, according to Ars.
More interestingly, and something most users will appreciate, is that the WP7 marketplace will allow time-limited, fully-featured trials of applications, something neither the Android or iPhone marketplace support. “Many of the free programs on Apple’s store are just cut-down versions of other, paid applications; with Marketplace’s built-in support of trials [...] these free programs might not be necessary”, as Ars puts it.
Finally, according to store’s terms of service, any application that, “generally fall under the category of pornography”, will not be allowed.
Source: Ars Technica, Microsoft WP7 Developer Terms [PDF]