Perhaps, as this would be a very cool theme, some sort of half-way LCARS solution could be developed... with a little careful design and placement a theme/widget combo could be quite successful, using a desktop widget to simulate the vertical bar area. The rest of the OS would not work so well but at least a reasonably faithful desktop could be possible with an LCARS flavour to the rest of it.

The vertical widget could even do useful things like show missed calls, voicemail/email/SMS notifications if someone was clever enough...

I alas am not!