Trader Joe's beer

I picked up some of Trade Joe's Vintage Ale a couple days ago and I was surprised to see Unibroue imprinted on the cork.

I have also heard that the other Trader Joe's beers are made by Gordon Biersch. Anyone know if this is the case?

Also, if anyone has tried all the TJ beers, how do they compare to the GB and Unibroue products?

I've never had Unibroue beers as I'm not a big Belgian style beer drinker. The Vintage was OK but not my usual style, a little sourness and very little body, dark and moderate hops.

This was discussed here awhile back.