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There are all sorts of neat effects you can cause with superheated or supercooled fluids.
The bottom line of it is, alcohol acts like an antifreeze (though it's a little surprising to me that beer has enough alcohol in it, compared to its water content, to cause the effect). My guess is that the lime juice cut the alcohol enough to overcome its antifreeze effect and flash-freeze the whole bottle. I don't think it's about surface tension so much as alcohol content.
You can nuke a glass of distilled water well over the boiling point, by the way. Without any impurities in the water, there are no nucleation points for the bubbling and evaporation to start. Then if you drop any object into the water, it'll burst into furious boiling in a fairly explosive way. Obviously this is best done in a lab with some safety equipment...
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