Version 0.9.0.3 is live! This is a small update that addresses some of the suggestions folks had in the comments:
The Professions menu now shows advanced buildings that were missing from it before.
The Professions menu also correctly updates to reflect the latest world if you switch planets while leaving it open. =)
The tooltip on the Population bar (that small one in the upper right corner) will now tell you about the Happiness and Healthiness of your population.
I found a bug where the quantity of goods being shipped between worlds would sometimes be reduced to '1' for each type of resource. This is fixed now, and trade routes should reliably deliver their intended amounts.
Also, Peabs on colonization missions weren't disembarking from their ship until you looked directly at their planet. This should be fixed now, though I don't think it was having much of an impact on gameplay since you had to look at the planet to give them orders anyway. =)