This is becoming more and more debatable.
Not as exactly same as nanotechnology cause we don't got
the alien tech but this new discovery can simulate strength mode.

Oh and ive been thinking the same thing as this guy too. Even if u had
Obtained max strength either through symbiotic nanotech or
The carbon nanotube muscle, ur bone will still be what it used to be
Which means a piece of calcium mass that is as weak as a branch.
So when u try to kick a ton weighing car ull end up breaking ur tibia n femur.
So my idea is, to be a real nanosolider, one might have to go through
Some serious surgical operation of replacing calcium based
Skeleton to some sort of heavy metallic components or the powerfulliggt weight
Carbon fiber composit.

End of my sci fi talk haha

http://videos.howstuffworks.com/science-channel/40222-sci-fi-science-finding-superstrength-video.htm

haha...

its true we have made some advances for nanotechnology in regards to military applications like carbon nano tube based body armor and other advances. But nanotechnology is still quite in its infancy.

Maybe we will see a nanosuit in the future, but certainly not in our lifetime, and probably much longer before the public knew of it