Everyone in the US is apparently going ape with the new Nokia 6620. It is pretty much the same as the 6600, but with more RAM, EDGE support and finally, an expansion port for stereo headphones and Series 40 peripherals: My-Symbian, AdM+Partners, MobileBurn, All About Symbian. I guess that faced with upcoming competition in the US smartphone space, they decided to push the envelope a bit - and they still have a lot of room to grow in the US market on all segments.
Personally, I considered this review of the SonyEricsson T630 a bit more interesting - it is “presence-aware” (which is an interesting feature leading up to Push-To-Talk), has a better screen but is apparently still cripped by a sub-standard camera and some slowness.