Nielsen crunched Q4 numbers today, and the results will likely have Apple analysts jumping up and down. The findings, focused on those who've purchased a smartphone within the previous three months, indicate a huge spike -- from 25 percent in October to 45 percent in December -- in iPhone purchases since October as an obvious result of the launch of the 4S. Conversely, the number of recent Android buyers fell by 14 percent in the same period. Of course, these numbers are directly affected by Apple's latest product launch and by no means should be any indicator that Apple is po
