G80 comming in June, so says many sites. is that even possible so soon after g71.?/?

[Zenjirou]

Many sites previewing the G80 and its 800Mhz Shader Model 4.0 Direct X 10, 80mm, GDDR4 insanity, say that its comming in June. One said April.

Realistically speaking, I woudn't be surprised if this was the case, as nVidia and ATI have released cards in such a manner in the past..

How possible it is that G80 will come June 06. What do you think.

Reason I'm asking; is it worth Investing in the 7900 G71 Series as its predecessor proclaimed to be a major leap in performance is comming a few months away.