iPhone 4 - Faster 3G speeds or nothing but speed bumps?

While iPhone 4 adds 3G HSUPA (high speed uploads) to preview HSDPA 7.2 (high speed downloads) and is giving many users much faster data, others are filling our inboxes with complaints their speeds are so slow they border on 2G EDGE... or worse.
I know when I upgraded my iPhone 3GS to iOS 4 I had some data issues but almost immediately my carrier, Rogers, pushed out an OTA (over the air) Carrier Settings Update, taking it from 7.0 to 7.1. After that, I was flying.
AT&T seems to still be on 7.0, could a 7.1 update fix the woes of those currently suffering from poor 3G connections? We'll have to wait and see.
iPhone 4 really is faster, but once again it's confusing when many people have no problem and get to enjoy that speed boost, and others have nothing but problems and speed bumps.
Let us know which group you fall into, on what network, and where.
Get more iMore in your inbox!
Our news, reviews, opinions, and easy to follow guides can turn any iPhone owner into an Apple aficionado
Rene Ritchie is one of the most respected Apple analysts in the business, reaching a combined audience of over 40 million readers a month. His YouTube channel, Vector, has over 90 thousand subscribers and 14 million views and his podcasts, including Debug, have been downloaded over 20 million times. He also regularly co-hosts MacBreak Weekly for the TWiT network and co-hosted CES Live! and Talk Mobile. Based in Montreal, Rene is a former director of product marketing, web developer, and graphic designer. He's authored several books and appeared on numerous television and radio segments to discuss Apple and the technology industry. When not working, he likes to cook, grapple, and spend time with his friends and family.