Good, Bad, slow, fast all relative terms.
From what I've seen the Verizon 3G (EVDO) is typical at 350 - 500 kbps down
EVDO Rev A is typical at 850 kbps down
EVDO Rev B is typical at 1.45 Mbs down. ( I have rev B only on my 5Spot device) And, I've experienced peak speeds at 2.3 Mbs on Rev B
AT&T has this new form of 3G called HSPA+ which can do about 6-7 Mbs down and in some places even faster, but how consistent is it? The reliability is not near the consistency of Verizon's service from my findings. This is especially true for areas with rapidly changing population density. for example, the AT&T network was almost non existent during CES in Las Vegas but I had EVDO Rev B at 1.45 Mbps all week long. It's OK for AT&T to brag about their network being the fastest but I'd rather have a more modest speed that works everywhere, so reliable in fact that I just don't concern myself whether I'll have service or not.
From what I understand the Qualcomm 6600 chip in the iphone 4 is EVDO Rev A and B.
From what I've seen the Verizon 3G (EVDO) is typical at 350 - 500 kbps down
EVDO Rev A is typical at 850 kbps down
EVDO Rev B is typical at 1.45 Mbs down. ( I have rev B only on my 5Spot device) And, I've experienced peak speeds at 2.3 Mbs on Rev B
AT&T has this new form of 3G called HSPA+ which can do about 6-7 Mbs down and in some places even faster, but how consistent is it? The reliability is not near the consistency of Verizon's service from my findings. This is especially true for areas with rapidly changing population density. for example, the AT&T network was almost non existent during CES in Las Vegas but I had EVDO Rev B at 1.45 Mbps all week long. It's OK for AT&T to brag about their network being the fastest but I'd rather have a more modest speed that works everywhere, so reliable in fact that I just don't concern myself whether I'll have service or not.
From what I understand the Qualcomm 6600 chip in the iphone 4 is EVDO Rev A and B.