HyperSpace instant-on OS pops up while Windows boots
@ 2009/01/12"We've all been there: we power up our laptops and then find something else to do for several minutes or more while our computers boot up." Phoenix's pitch for HyperSpace may be just slightly hyperbolic, but the idea behind the new instant-on operating system is cool nonetheless. In short, HyperSpace Hybrid pops up while Windows is booting, and you can toggle back and forth between the two OSes by hitting F4 on your laptop keyboard.
Booting takes a lot longer, but I can't imagine that it would take long enough for anyone to do something usefull in "hyperspace".