The two-kerbal command pod... hadn't thought about that, but most definitely I'd love to have one. My big one though is a restructuring of the science tree. I LOVE the whole science aspect, as now It forces me to do new and different things each mission, and makes me really want to go to different places I never bothered with before. A simple one is that I'd much rather have an un-manned probe at the start, and need to unlock the manned command pods. And perhaps some kind of KSP version of other non-kerbal life forms in capsules, similar to dogs, monkeys and such. I also would like to see more types of 'science' rather than the catch-all single type. Aerodynamic science, structural science, habitation science, etc... I just lose the immersion a bit when I can keep looking at mystery goo in order to unlock an aerodynamic step in the tree and things like that. I'd like to have it more where studying a specific science is needed to further progress down that technology. Run an accelerometer to get propulsion and aerodynamic science, things like that. In some ways the current system causes me to completely ignore some aspects of the tree since there is no need for me to deal with them in order to get the higher up items I actually DO want.
