It looks like the gaming site FileFront had the opportunity to have an interview with John Podlasek, the producer for Mortal Kombat: Deception. They talk about some of the goals behind MKD's creation, some of what went into Deadly Alliance that they have now continued, some of the things to expect for the GameCube version of Deception, and a variety of other subjects. From the interview:
One of the things we're most proud of is also having an online mode not just for the fighting mode, but also the puzzle and board game modes. The ability to find gamers 24/7 all over the country to compete against with in these different modes is awesome. And unlike our competition, the fact that the majority of players are having a good experience online in terms of performance and latency will keep the game growing as more people get broadband (we're really close to 2 million online matches played since launch on just the PS2, which is amazing).

Check out the full interview here.