I think X200s models with SU9x00 CPU can now be librebooted (at least
corebooted). My community friends recently corebooted X301 with SU9x00 CPU,
which is very similar with X200s (same chipset).
If you want to run virtual machines on librebooted X200 series, then there is
still certain problem with VT, related to CPU microcode. But the CPU
performance should not be a problem. I can even run VMs on an X300 (GM965
based) with weaker SU7100 CPU.
Whether SL9x00 or SU9x00 is better depends on your needs, i.e., battery life
or CPU performance.
As for the screen, you asked that "does it have a LCD screen". Then I could
only tell you that (almost) any laptop computer has at least one LCD (liquid
crystal display) screen. For X200s models, they all have LED-backlit LCD
screens. And very few of them have WXGA+ (1440*900) screens, and those who
have WXGA+ screens also have carbon fiber tops like X1 Carbon and are
therefore much lighter.
