For the record:
MacBook Air: LED display, TN panel. Bright, sharp but poor vertical viewing angle. (It is a fraction of an inch thick, after all.)
High-Res 17" MBP: LED, TN.
Extremely sharp with a bright and even backlight to match.
The normal 17" MPB remains unchanged: CCFL backlight.
Regarding the S-IPS panel in the MacBook Pro.... I'm thinking my earlier reports we're incorrect. I unfortunately don't remember where I got that information, but I do believe that the MacBook Pro - all models - use a TN panel based on my own observations of the viewing angle.
Apologies for neglecting this thread. I'll be more vigilant in the future