I cannot really comment on the Nailbom bridge because I dont own a guitar equip with it.
But as far as your question:
Is it possible to put the bridge one in the neck?
Yes, I think it is but it will probably sound very odd.
Although some people have become famous because of the out a phase sound some pickups give when put in the wrong position.
I suppose you would have to hear it to see if you liked it, but I am not sure if anyone will be able to post a sample of it in the wrong position because I am not sure if anyone has a nailbomb bridge in the neck position.
All I definately know is that the bridge pickup will not hold the same sound that you have fell in love with if put in the neck.
Well at least it shouldn't....
Then again I could be completely wrong
Dont decide completely on my answer :)
Hope this helps,
RorySRV,