Windows Phone
Windows Phone - Microsoft’s mobile platform that couldn’t even connect to hidden wireless networks! A prime example of how to snatch defeat from the jaws of victory. RIP Windows Phone, you beautiful, frustrating disaster. At least we learned what NOT to do in mobile development.
2010

Another bad Win7 Mobile decision – Developer Tools
Microsoft’s Windows Phone 7 developer tools installation fails on Windows Server 2008 R2, despite being a common development environment.
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Windows Mobile 7 doesn't connect to hidden wireless networks
Windows Phone 7 lacks the ability to connect to hidden wireless networks, a significant limitation for enterprise environments.
Continue reading Windows Mobile 7 doesn't connect to hidden wireless networks