hmmm.
With Wii Fit plus releasing this year, which should sell 10 milion before the fiscal year ends(5 million balance board bundles), plus another 4 million from Wii fit, bringing the total to 9 million more balance boards. Bringing the total to 30 million units. PS3 slim success will die off within 3 weeks and it will be back to 80k / week or even lower since now everyone who wants a PS3 and was waiting for the SLim now has one.
By the end of the fiscal year Wii balance board will have a 1.5-2 million lead over PS3, and will only trail the 360 by 4 million. March 2011 and the balance board will outsell the 360, march 2012 and it will enter the top 5 best selling systems.