The new model seems to be identical except has an auto sensing switch and is rated at higher Amps but this may have to do with the fact that it's meant to have a power tool plugged into it as the cfm and vacuum rating are the same.
Amazon.com is taking orders for the new model for $229 but they are not shipping it yet.
I just ordered 2 of the sale models - thanks for the tip Bill you saved me a few hundred bucks (the wife thinks you cost me a few hundred but I know better)