I would like to be able to stay in orbit and so far am unable to except by 'slewing', and as soon as you go above 400K, the speed goes to 0. I think this would be a great product if the full experiance was available, from launch through missions such as docking with the Space Station, Hubble telescope, etc

Unfortunatly, as it is now, once you have mastered the landing, its over and gets boring very quick.