It sure would be a surprise if they switched to Verizon and had the same number of dropped calls.
My wife and I are both on ATT and I can sit right next to her on our couch and make a call with my Nexux One while she can't with her iPhone 4.
Perhaps the Verizon radio will just work differently or something in the Apple engineering is really susceptible to AT&T's GSM technology. I'm not even talking about Antenna-gate. This has been the case since my Samsung Jack and her iPhone 3.
__________________ Phone: Nexus one Backup Phone: AT&T Samsung Jack; Future Phone: I'm Watching WP7; Media Player: Platinum Zune HD 32GB; Home Server: HP MediaSmart Server LX195 Console: XBox 360, PS3, Wii