So can somebody explain to me, how come that the bets kept on flowing even with the domain down (that's a fact, right?)? DNS caching? Are there alternative routes to using this service besides satoshidice.com?
When you bet on satoshi dice, you simply send your bet to a selection of fixed btc addresses (depending on the odds you want). If the domain goes down, it doesn't affect the btc addresses or the site itself. I'd assume seasoned gamblers have the addresses stored in their client address book. Blockchain.info is another way to use the service.