Microsoft's corporate vice president Steve Guggenheimer didnt give away much - "it's very thin and light" is about all he said. Which is what you would expect from a Galaxy S II based phone.
The styling of the mystery Samsung WP7 phone was reportedly similar to that of the S II and featured the Home, Back and Search keys that all WP7 phones must have. The phone was shown at a distance, so it's hard to say if the screen was a SuperAMOLED Plus or not.
We could probably expect the new Samsung WP7 phone in time from Christmas when HTC, LG, Acer, ZTE and Fujitsu will be unveiling new Windows Phone 7 mobiles as well.
Nokia's plans don't seem to include any WP7 action for this year. Still, maybe all these plans for new phones from several companies will please Steve Ballmer.
If you want to skip straight to the Samsung WP7 phone's appearance, click on the Steve Guggenheimer mark (the keynote is over 2 hours long).
source: GSM Arena