IMHO this is a very good news not only for Nokia but also for Free Software in general.
Nokia's offering was lagging behind the competitors in recent years and they realise it and they doing what they can.
First thing they did was to embrace Free Software.
Second was ditching Symbian, but before they did it - they took their part in opensourcing it.
Then: acquisition of Trolltech and releasing Qt under GPL3, introduction of fully-open telephony stack (oFono) and continued work on Linux-based mobile OS. And they are not shy to use (and release) GPLed softwareL.
It looks like the last bit they're missing to become 'geeks favourite phone manufacturer' is vigorous management. I hope that the new guy - albeit of non-FOSS-friendly background - will do the job.