Real sales figures (a la Gartner) as opposed to shipping numbers give a clearer picture of consumer demand IMO.
Interesting that here in Australia, feature/dumb phone sales is what have kept nokia in the top spot in recent quarters, however, they've only achieved the numbers by slashing handset prices in that segment by up to 45%.
It starts to give a clearer picture of how far Nokia is willing to go to retain top spot, when they are willing to sacrifice profitability to do so.