1. Alas, as it turns out sounds cannot (currently?) be played through the emulator. This of course makes it somewhat difficult to test how they would work.

2. I'm not completely sure, but unless you hit some sort of wall I wouldn't worry about it.

3. For the purposes of the contest I would say that as long as any graphic surrounding the logo was done by yourself you will be fine (ie. don't download "stock" logo buttons done by someone else) .