Nokia held off Apple by dumping whatever they had in the channel for peanuts, thus posting gains in share that are actually artificial, given the circumstances.
What actually happened, if this report is correct, is that Nokia sales to end users must have dropped quite a bit in the quarter before, with Nokia still selling to distributors, which lead to a huge number of phones in stock, and the drop in Nokia sales went unnoticed. This quarter, sales to end users dropped as well, but distributors weren't buying the phones from Nokia, so Nokia's sales to distributors dropped even sharper than sales to end users. Next quarter the numbers we see should reflect reality.