Our understanding is that these devices are in fact given, not loaned. That was stated by Quim while he was the Nokia rep, and AFAIK, that has not changed on his leaving.

The official rules are that you can not win a device of the same type if you've won past Nokia competitions. So if you have an N950 from a previous event, you may in fact only claim an N9.

As for when results will be ready, the machine will make the vote tallies available as soon as the poll closes. However, due to considerations like those above (and the fact that some entrants are in multiple categories, and can only validly win one category?) the "official" results may be somewhat different for a given category than what a simple run of the vote counter would yield.