I've been wondering about the same sort of thing.
If a domain is pre-reg'd by more than one person and it goes to auction, is it open for anyone to bid? Or are these auctions just for the people who pre-reg'd the domain.
Also, are you charged to pre-reg? -- Ifso, what happens if you don't get the domain? Are you refunded?
Final question. I'm slightly confused over the .ASIA criteria you need to meet before you can reg a .ASIA domain. Do you need to live in Asia? Or do you need to have some kind of Asian-based company? How would someone like me, (a non-Asian), get their hands on a .Asia domain?