Thought I'd compare the two devices. I'm moving to TX this week, so thought I'd get this done with to see how the two compare!
I have to say this is a great test..I have 3 signal bars on both devices!
Test was done with an iPad 3G and iPhone 4 Verizon
Both were done with at least two Cell tests, and one Wi-Fi test on a wireless G network. Both devices were placed in my office, on my mouse pad. Last photo is the area I live. Roughly 15 miles from downtown Denver.
Verizon iPhone 4
AT&T iPad 3G