Launch date: October 7, 2003

Fatal flaw(s): Poor game selection, poor design

Want to hear something crazy? The Nokia N-Gage sold 3 million units before being discontinued. That's wild considering its $300 price tag when it first hit stores, it's extremely lacking game selection, and confusing button layout. But you have to give Nokia some credit. Before anyone—Apple, Google—saw a future in the convergence of mobile phones and mobile gaming devices, Nokia took that risk and put out an inventive product that just wasn't really that well designed. We'll give Nokia an "E" for effort.