i will just say that in this regard that you are an uneducated idiot. GTX260 is based on the GT200 chip, while the 9800 is based on the OLDER evolution of the G80, and the whole GF9xxx series is based on chips from the G92a/b, G94a/b, G96a/b, G98 iterations of the basic G80 chip which premiered with the first 8800 cards.
the card that you are thinking of is the GTS250, which is based on the G92b chip (the one most often used in 9800 series cards) and is just a matter of clever marketing on nvidia's side.
and overall, all of this doesnt even matter at all, since i got it extra cheap used, warranty less, etc. which was a bonus, since the card has horrid heat problems with default fan speeds etc.
also, i doubt that your precious 4870's "creamed" my gpu as hard as you say. they are in the comparable performance area and, if i remeber correctly, 275's and 285's ate and spit out your precious 4870's all over.
(also, note i'm a nvidia fanboy, and at the time of getting this card i wasnt actually paying anything for it. if i were buying i likely would have gone ati, since the prices are extra inflated here in croatia..)
anywho, flamewar on?