What form are the drivers for this card in? I'm thinking of replacing the MAS player in my jukebox setup with one if it supports MHI - that would be on an A1200 clockport. Also, what sort of API is used for decoding other formats? Will there be documentation on that or will it just be through a custom application you provide?
As for the clockport splitter, some people would indeed find it useful I'm sure, and many clockport devices support multiple ports. DJBase doesn't seem the most reliable, but the board itself is very simple to build. I think the problem with throughput is just something people will have to work around (don't do heavy USB transfers while streaming WAVs for example), but with new USB adaptors appearing, I'm sure many people would like to use both without dismantling fragile connectors to switch from one to the other.