By the end of 2011 there will be a lot of Ultrabooks from partners already available.
Some of them, based on the new Ivy Bridge were already demonstrated at the keynote presentation:
Another important aspect that concerns everyone, is finding a way to get more battery life. One thing that consumes most power is the screen. Intel came up with a self refresh technology that allows saving power on the screen, which in the end results into additional 45-60 minutes of battery life.
This side by side demonstration showed that while the monitor on the left was constantly consuming power, the one on the right had self refresh technology kick in every time
the image went static and the CPU went to sleep mode. They even pulled out the power cable completely disconnecting the monitor from the power source, and the static image remained intact.
The presentation ended with a sneak preview of the upcoming Haswell processor, which should be ready by 2013 and should deliver more than 10 days of connected standby and more than 20x performance per watt improvement.