Eufloria is a beautiful and amazing game! Unfortunately, I've experienced quite a few crashes but I look forward to future versions and am keen to see how this game evolves.
That said, I experienced another hang last night but noticed that it happened during a drag-move exactly when I captured another asteroid. When I have time, I'm going to see if this is repeatable but as it happened precisely at the moment of capture, it may be a good clue as to where to look assuming it wasn't a coincidence.
If anyone else notices this perhaps they could post to confirm, too.
Good luck devs and congrats on an wonderfully designed game! Cheers, -J.