I had mixed signal results with the older Sony Erricson (T610 or something), but my signal is much better with the Sidekick 3. It's rare that I can't make a phone call in the South Bay and I can't remember the last time a call got dropped.

There are a few wacky dead zones. Wolfe and Homestead is one, part of Remington is another. Overall though, it's been good.