The touchscreen tech isn't named, but I suspect that the Odyssey uses the Neonode zForce touchscreen that has proven so popular on the Sony Reader, Kindle Nook, and Kobo.
This is Bookeen's 4th ereader, and this time around we're in for a treat. Bookeen have been mostly silent for the past year or so because they were working on increasing the refresh rate of the E-ink screen and it looks like they might have really pulled something off here. They posted a demo video all the way back in February which showed off video, and then in May they demoed scrolling on an E-ink screen.
The video ability is old hat now, but I'm still impressed by the scrolling. That could be incredibly cool, assuming it's fast enough, because it means that the E-ink screen is one step closer to being a functional replacement for a tablet screen.
Bookeen are getting more and more impressive as they get older. Their first ebook reader was the Cybook Gen3, which was based on the original and outdated Netronix design (it looked much like the original Kobo). Then in 2009 Bookeen released the Cybook Opus, a lighter and slimmer model with a 5" E-ink screen. 2010 saw the release of the Cybook Orizon, which had a 6" Sipix screen, capacitive touchscreen, and Wifi.
We don't know the full details on the Odyssey, but I'm looking forward to finding out.