Just a couple days ago it was announced by Nintendo of America's Reggie Fils-Aime on the Jimmy Fallon Show that the 3DS has been pushed back to a March 2011 lunch date. But with this bump down the line, Nintendo is hoping to not repeat the Wii shortage massacre that left many gamers Wii-less for a good while. A rain-check system was even implemented to help ease the frustration. The President of Nntendo, Satoru Iwata has stated during an analyst conference,

"At first we thought it would be desirable to launch the 3DS within the year, so we made our forecasts on that basis. At this point it is clear that if we launch within the year, we will not be able to supply enough units."

A good call on Nintendo's end, I would say.