Beta testing with the second group has gone well, people seem to have got on mostly fine and while we have made a few changes & additions based on what we've heard, things are feeling pretty solid now.
We've spent a lot of the last month polishing - better in-game effects, redesigning some UI bits, making our title screen handle more aspect ratios, and so on. Art which was a work-in-progress is approaching final state - it means of course we'll have to re-do all the screenshots and the trailer again, but that's not a bad problem to have.
The game now has achievements (34 of them) and music (a title track, and 2-3 tracks per game mode), and we're really happy with it.
We feel like the final polishing will be done within a month, but due to a schedule clash around that time we're pushing the release date to October so that we can be sure we'll be fully available when we flick the switch. It means we narrowly miss the "Summer" target we hoped for, but at least this is a window we can be certain of, pending Steam officially giving us the green light.
Sooooon :)