Nokia may still sticking to the official line that it will begin shipping Windows Phone 7 devices in "significant volume" in 2012, but it just dropped a big hint at its Mobile World Congress press conference that we could be seeing the first device even sooner -- like this year. That word came from Nokia's Jo Harlow, who said that her boss would be "much happier" if the timing of the initial launch was in 2011. As you can see above, Nokia's also kindly confirmed that leaked Windows Phone 7 concept that we just got our hands on Friday, and it's shed yet more light on the behind the scenes intrigue that led up to the switch to Windows Phone 7. According to Stephen Elop, the "final decision" to go with Win
