According to the code a generator CAN be a seperately derived system...

Another Electrician has steered me to a Siemans model of transfer switch that is three pole to switch the neutral.
SIE-EQG660D
Here is a link: http://hillsupplies.com/cgi-bin/search/subproducts.pl?qs=5803&sb=commodit&d=00&ft=1

This discussion is only referring to small portable generators used for Home back-up... Most gen's have the neutral bond to use with the recep. but HONDA is now putting them out without a bonded neutral, probably for the home back-up reasons, but isn't that electricaly unsafe? for use as the stand alone 120v recep's go?