matt247 on 15 March 2010
Confirmed: Marketplace will be the only way to get apps on Windows Phone 7 Series

- Windows Phone Marketplace appears to take some of the best parts of the App Store and the Android Market and throw them together into a hodgepodge, but they've strayed a bit with the trial period system -- with the Marketplace, it's up to the developer to decide how the trial works. There are API hooks to let the developer manage the whole process, actually -- to quote Biggs, a game dev could end the trial after you've killed 50 trolls, for example. There's no additional download after the trial expires; the game just unlocks if you choose to buy it.
- Marketplace membership for developers still costs $99 a year, though Biggs says they're looking at tweaking the 5-app limit per account present in 6.5 -- whether that means they'll remove the limit altogether, though, we don't yet know.
- There are no fees for developers to update their apps, nor fees for users to download them.
- Speaking of user downloads, you'll be able to uninstall purchased apps and redownload them at a later time at your leisure -- the purchases are tied to your Live account, not your phone, so you can move between devices at will. That's a Microsoft policy that developers won't be able to override.
- If a dev wants to post a free, ad-supported app, they've only got two hurdles: the $99 fee and -- of course -- approval by Microsoft. For ad-supported apps specifically, the company will have some guidelines specifically targeted at making sure the ads are appropriate and germane.
- Microsoft's only dealing in real money here -- no points (though there's still an opportunity for direct carrier billing).
- Though there's some development synergy between Zune and WP7S at this point (with XNA, specifically), there's no ecosystem synergy beyond that -- different marketplaces for the developers to submit to and manage.
- You'll be able to browse and buy apps and games through the Zune client.











