i'm just on the sign up page now. they offer 200 points to somebody who reffered me. if anybody wants the 200 points just put your giffgaff username up. i'l hang on a bit.
my giffgaff username will be crispy33 if somebody gets to the sign up and doesnt want to waste the 200 points.
not sure what the points give you yet,better than going to waste though.

happy giffgaffing on your n900 wonderphones chaps!