Recent discovery of negative mass...this is (in one or more respects) tantamount to anti-gravity, isn't it?

Please forgive me if the question is ignorant, but I've not been involved in "real physics" for many decades now.

Recent article describing the creation and observation of negative mass:

http://www.bbc.com/news/science-environment-396429...

Given (quote from the article)

With negative mass, if you push something, it accelerates toward you

That means that acceleration due to gravity would cause a negative-mass object to accelerate in the direction opposite that of the pull of gravity...right? So: any object made of negative mass would act in a gravitational field much as would a positive-mass object in an equal-but-opposite anti-gravity field...right?

So: imagine a space launch vehicle (goal: reach Earth orbit altitude and release payload) made of (room temperature) negative matter. Only fuel for directional rockets required!