That's true, I think the ultra compact fusion reactor was only possible because of the Minovsky particle, right? Maybe the Large Hardron Collider will bring about stuff like that, who knows

I do think Mobile Suits could be easier built for use in space. I just think it would be hard to have them be to the same scale and weight if they were real and used on the surface. I mean, that's a lot of mass to move, I can't see something as massive as a Mobile Suit being able to run, or jump that well, without the ground under it giving way.
For the RX-79g...
Dimensions: overall height 18.2 meters; head height 18.0 meters
Weight: empty 52.8 metric tons; max gross 73.0 metric tons
Armor materials: lunar titanium alloy
Powerplant: Minovsky type ultracompact fusion reactor, output rated at 1350 kW
It's such a small contact patch compared to it's weight. Then again, I don't know how big of feet it really has...
Meh, but I just looked and an Abrams M1 is 60 tones, so perhaps I'm being to harsh. And, one more interesting thing about the Abrams, it's output from it's gas turbine engine is 1,119kW the output for the RX-79g being 1,350kW. Not that Sci-Fi will transfer to science fact, but maybe it all more feasible than I thought. The output numbers for the RX-79g are likely to just be arbitrary numbers thought up, but I wonder if that gas turbine turned an electric generator, could it make enough power to run something like that? Or how much power would something like that even take to run. But then it could not operate outside the atmosphere, still would need a reactor to make the electricity. Not that I expect an answer, just wondering really.
But in other series like the less believable Wing, the suits like Zero being a more feasible, but still heavy 8.0 Metric tones and 16 meters tall. Maybe it could fall somewhere in the middle?
It would be pretty cool if it were possible. I like the idea of Space Colonies too.
This can't be any more lame than wishing lightsabers were real right?