Okay....Issue #92 of Vol. 1 states that the biochip implant was created by Roxxon(which is probably how Delphine found the future members of Omega Flight...if they have/had biochips). It is also revealed in that issue that Mac finds out that the chip can be used for "biofunction sensory systems manipulation", Which really makes me wonder why on earth Mac would consider working for Roxxon in issue #6 of Vol. 1...if he knows they're a dirty company.

Uncanny X-men issue #120 seems to indicates that all the original members of AF can be "called" by biochips...I've yet to find anything to indicate that Snowbird does not have a biochip. I wasn't sure, but I had thought I had read something about it in AF, Vol 1. I must be wrong about her.

Dana