KIN One and Two
Lifespan: May 2010—June 2010
Price: $149.99 (One), $199.99 (Two)
Pushed As: Ultimate social media smartphone
Why It Failed: How could Microsoft push a social-networking phone that lacked instant messaging, memory slots, and calendar and contact synchronization? Well, turns out it couldn't. (Don't say coming.) Despite sporting a cool operating system and hardware, Microsoft decided to kill the KIN a month into its release and focus on its other Windows 7 phones.