Probably the main potential of the deal is not within the essential patents, as these have to be licensed under FRAND, limiting both the possible revenue and their tactical effect in court.
The question is however, which other, non-essential, patens have been sold by Nokia now, and of course why.
My guess would be to fund a reboot, and come up with a plan B that does not require Microsoft, just in case they pull another Sendo-type thing:
http://en.wikipedia.org/wiki/Sendo
The question is however, which other, non-essential, patens have been sold by Nokia now, and of course why.