The realization that we don't know whether antimatter would fall up or down was my Holy Shit moment of the day. So there are understandable basic questions open in physics after all...
These guys now say they've trapped 309 antihydrogen atoms for up to 1000 seconds. That's an increase in trapping time of four orders of magnitude, comparable to what's possible with good old ordinary matter.
The news is significant because it makes possible a new set of experiments that should answer some important questions.
Most important of these is whether ordinary gravity attracts or repels antimatter. In other words, does antihydrogen fall up or down?
Who wants to bet on the answer?