Just in - the boxed Nokia E90 Communicator and (almost complete) sales kit. It's not a production device, but it's oh so close. Firmware is v7.21, by the way, dated Monday! Full unboxing photos and notes below! 
First of all, it's NOT a production E90, it's still technically a prototype. I guess 'production' units are still a couple of weeks away. However, this is my first chance to see the full sales package, along with release candidate firmware (7.21) and an 'almost black' device colour scheme (which looks superb, by the way, the build quality on these E90s is astounding, especially considering they're technically still prototypes).
Missing from the official sales package was the PC Suite (etc) DVD-ROM, which will be produced at the last minute, presumably to pick up the very latest PC Suite version. Most production E90s will ship with a 512MB microSD so that users can get started with adding music, country maps, etc. And there's the 130MB or so of internal flash memory as well, so no shortage of storage.
Booting up for the first time. There have been many rumours about the E90 supporting TV Out, in the same way as the N93 and N95, but I haven't seen any evidence of this and there's no 2.5mm jack to multimedia lead included here. The good news is that (despite scaremongering in the forums) A2DP most definitely IS here and works brilliantly. Streaming wireless music is very practical and has a great range, from my tests at least.
Nokia, I'm impressed. Getting me a device with firmware from two days ago! Watch this space for news of anything I spot that's fixed/changed/new.
Up and working with the clamshell opened. I can't stand their default theme though, it's back to the supplied 'Turquoise', thankfully.
See also my detailed Nokia E90 reviews here on AllAboutSymbian:
Nokia E90 - the Early Verdict
Nokia E90 - Adapting the Applications
Nokia E90 - Web and Work
Nokia E90 - Camera and Multimedia
Nokia E90 - Navigation and More
Steve Litchfield, AllAboutSymbian, 23 May 2007