One analyst doesn't see a great future for the rumored Facebook phone, in that Facebook is going to hack off its partners by building one.

You know it's bad for Facebook when its rumored "Buffy" phone, arguably still in rumor-mode instead of "we have a working prototype that's on the way soon" mode, is already drawing comparisons to Microsoft's Zune. And there's nothing good about that, argues analyst Rob Enderle in a column posted today.

Enderle, writing on Digital Trends, claims that there's just too much in common between Microsoft's failed Zune players and Facebook's alleged phone for Facebook to have any chance of making it in today's market. And he's not just speaking to the phone's alleged technical prowess  He says that Facebook's overall strategy is going to get it, and the phone, into a great deal of trouble.

"You see, HTC is on the other side of the Zune problem. Just as Microsoft lost trust from its hardware partners, an OEM like HTC stepping out against their software partner should have the same kind of collateral damage," Enderle writes.

The problem looks something like this: Microsoft partnered up with a variety of companies to create its "PlaysForSure" platform, a certification process that ensured that a particular device fit a laundry list of compatibility and performance requirements. Namely, that content grabbed from online systems branded with the logo would work, DRM-wise, on PlaysForSure devices.

Only, Microsoft then went and decided to compete against its partners by developing what was, at the time, supposed to be the company's big iPod-killer. Only, it didn't.

"You never want to put yourself at odds with your key revenue source and sow seeds of distrust, but the Zune did that with partners. It was also a colossal failure at the same time, which upset retailers and made them lose their trust in Microsoft," Enderle writes.

According to Enderle, Facebook is about to make a similar mistake with its rumored phone. By partnering with HTC to allegedly develop the phone, Facebook risks angering HTC's other big partner, Google, by essentially forking Google's Android operating system to suit Facebook's purposes. Facebook also risks angering Microsoft, a Facebook partner and heavy user of Facebook-enhanced social networking on its Windows Phone 7 platform, by competing head-to-head against its very smartphones. And then there's the fact that Facebook would be building an Android phone, not a Windows Phone 7 device.

"Facebook should be focused on building the best Facebook app for every major platform," Enderle writes. "Going into competition with these platforms and phone providers could alone turn them into the next Netscape."

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