I've noticed the preboard begins with those customers in wheelchairs or with walkers, etc. (I think their politically correct verbiage is "those needing extra time or assistance in boarding".)
I believe only families with infants are included in preboarding as they need time to get baby's car seat set up, etc. (The families that barge up with 10-17 year olds amaze me). Then they move to First class, exit rows, then NW, KL, CO and DL Elites, then general boarding.
I think it's pretty cool the way they include "NW, KL, CO and DL Elites" in the preboard announcement. Anyone know if CO or DL make reference to the other "Alliance Partner Elites" in their preboards?
Edited to add more/clarify info
[This message has been edited by supercalifragilistic (edited 08-24-2003).]