In the interest of science, here you are:

BusyBox v1.20.0.git (MeeGo 3:1.20-0.2+0m8) built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ $ free
total used free shared buffers
Mem: 1008648 967212 41436 0 27132
-/+ buffers: 940080 68568
Swap: 262136 54776 207360
~ $

And here is the top output:

Mem: 967620K used, 41028K free, 0K shrd, 27724K buff, 248328K cached

Thanks for your interest. Just to make sure, though, I'm really looking for an answer to paragraph (5) in the post above, which should be the same for all N9s, without regard for any specific memory data.