Nintendo (PINK:NTDOY) had no choice but to go all in with the Wii U the newest in a long line of ostensibly childhood-defining game consoles. Unfortunately the company also inherited the weighty expectations of the original Wii — which if you'll remember became a surprise hit when it debuted in 2006 or just two short years after the world was first introduced to a little-known Senate candidate named Barack Obama. But ever since the Wii U hit store shelves last November sales have been disappointing. Now the company is dramatically lowering its forecasts for the future.   Initial sales ...