This is just a little FYI...
The card works pretty good (great recording) except that when you open alsamixer a slider adjustments under "record" is missing. I don't remember what it was. It wasn't the volume control.
I reported that on the alsa developer list and someone else said there was another, related, minor problem with the driver. He planned to look at these issues.
So, although now the card is considered substantially functional, and is available with the standard Karmic distro, you might be pleasantly surprised in a few weeks to find out that functionality gets a bit better.
Then again, you might not. I forget which word they used to describe the underlying code, but its meaning encompassed the terms "Byzantine" and "nutty."