Outside of the center of downtown davis and the immediate vicinity, 3G is almost non-existant in Davis.
Yup, I can 2nd that motion. Was quite surprised that no EDGE either; in fact, cellphone service was almost non-existent along that corridor of I-80 (1-2 exits). I thought my AirBears or CalNet accounts would have kicked-in near UC Davis, but they didn't. I've been on I-80 to I-505 going towards Cache Creek NDN Casino and lost cellphone service (and money...LOL) for about 2-3 miles, but I didn't take that route this past weekend. Interesting...