4G out in Cincinnati, with 3G just now starting to be solid on my Bionic. My co-worker on a different Android phone (can't remember what make/model) said he hasn't had trouble today, but after walking past his cube, I'm betting he just realized he has been all morning.
By the time I finished typing this message, I'd already lost 3G again.
Bummer...I've had my Bionic for a little over a month, and it's been great until today, really.