The more I think about it, the more I would be uneasy about getting under the car and rocking it to free a loose bolt or something while the car is on a quickjack. Just seems too narrow and unstable.
I did see this earlier this morning too:
http://jalopnik.com/these-awesome-ja...-wo-1680463970
I think I just need to figure out a more efficient way to just get the car on jacks. Perhaps a better jack and two pairs of ramps. My current jack can't lift the rear of my saab high enough to get on stands.