My whole AvantGo experience centers on Yahoo! and my custon Slashdot channel. I can read that crap for hours.
3 Megs is more than I need. I keep wondering if there are more different channels availible for the 8 meg pay service.
For me, updating takes about a minute. DSL does a download good. I do remember AvantGo taking awhile for the update when I was still dialup. Nice to know I have the extra account space, but I think I'd hone down bullcrap if I had to wait, too.
My current cheannels are:
AccuWeather
Astrobiology Magazine
Brian's Belly
CNET News
DrinkBoy
liveDaily
MSNBC
New York Times Technology
PC World
Slashdot
Space.com
The Onion
USA TODAY
Weather Underground
Wired News
Yahoo! News
They seem to serve me well. These either update daily or weekly. Between this and textfiles, I always have something to read.
BTW - I also find that most of the default channels suck. Many of mine are custom. In fact, my Yahoo! News channel is custom.