After going back and forth with the authors of the dib0700 and xc5000 drivers, it looks like I got the i2c interface working properly. azap is reporting tuner lock, but it looks like there is some issue with the interface between the tuner and the demodulator, since I am not actually getting the video stream (probably an improperly set if_khz).
If I can get the digital side working, I am hoping to deliver patches for xc5000 and dib0700 later this week.
Spent the weekend with Victoria in New York. Went to Central Park on Saturday night. Saw Tropic Thunder this afternoon.