Windows Phone 7 shows off unlockable features in apps

Windows Phone 7 shows off unlockable features in apps: "Microsoft demonstrated one of their latest features, unlockable games from the trial-mode directly inside of the application, as spotted by istartedsomething. Unlike Apple and Google's mobile marketplace, Microsoft will allow users to instantly upgrade games after trying it first from right inside the app.

Microsoft has included a handy API...

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