I already asked kojacker to take over the "moderator role".
Like Estel, i would drop "significant updates to existing applications" too, IMHO.
For the ports, it's quite difficult to have an opinion, as the work required can vary a lot - porting a Qt app can be desperately easy in some cases, and require a lot of rewrite in other cases, for example.
But apart from that, I have another question: what is a "new" app, for this competition ? Never published on maemo.org / Nokia Store ? Coding begun this year ? I would say the first option seems reasonable, but maybe this rule is already written somewhere :-)
For last year competition, if I remember correctly, the work on the app had to be done during the competition start and end time. If the same rule is used, I assume, you have to start to work on a new app, when the competition begins.
Or #mccXII