One of the biggest changes to the Windows Phone 7 ecosystem is the installation of applications: you can only install them via the Marketplace and all programs need to be approved by Microsoft.

A lot of anger was directed against Microsoft for this decision, but we actually see why they would want to do this: consistency (security & performance) and a one-stop place to get software (simplicity). And at least unlike Apple, they promised to be much more transparent during the approval process.

Still, with so called no "side loading" of applications (only available to developers), some users are weary of going down the Apple route, even is Redmond is not as Puritan, well, except for 'suggestive' material.

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Yesterday, the U.S. Government added new exemptions to the 'fair use' policy allowed by, the some would say draconian, Digital Millennium Copyright Act of 1998. Amongst these exemptions, the one gaining all the headlines relates to how it is basically now legal to 'jailbreak' your iPhone and install third-party programs. In response, details on how to install 'Cydia' (an unofficial iTunes app store) have been posted on tech-blogs, previously a verboten topic.

What does this mean for Windows Phone 7?

It is safe to assume that Microsoft will go ahead with their current Marketplace plans and to be honest, we're okay with that as we think for most consumers, it will be perfect. For one, it has try-before-you-buy built in, something that the Apple App Store lacks--this missing features does drive some to install Cydia or Installous (the later is even more verboten)--so the necessity to "get around" Microsoft will be attenuated. Second, Microsoft promises to be more transparent and less-restrictive than Apple-ergo less motivation for a 'unofficial' Marketplace.

But, it also means that Microsoft can not legally try and shut down alternative app stores for Windows Phone 7 (and still win in court), but they still can try to block those who try to install third-party software or use their code.

This seems to be  a big victory, in theory, for the open-source and modding crowd e.g. XDA, who presumably could release their own WP7 store. But really, a lot of this will depend on if Microsoft decides to play hardball with the 'fringe' developer community (Apple), embrace them (Android) or take the middle ground as they usually do i.e. don't condone it, but aren't being jerks about it either.

Needless to say, it'll be quite interesting to see how all of this plays out in a few months, but we may be looking at a much more interesting Windows Phone 7 future.