The decisions he has made are truly surprising and to an outsider it is not comprehensible how they could be in the best interest for Nokia.

For me, the fact that the Nokia board is not acting (firing Elop) is even more surprising. This can only mean that

a) They don't care / don't do their job

b) They have information we don't have and for them Elop's decisions make sense

In the case of b) I would really like to know what the "grand strategy" behind all this is.. let's know this information becomes available sometime (hint: there is always WikiLeaks).