AMD to launch desktop Bulldozer "Zambezi" at E3 Show in L.A. (June 7-9)

[Oliverda]

That's more up to date

April-May timeframe seams possible

Yes, but you can see Nov10 as an IP date for Brazos and it only became available about two months later in Jan11. If you add that two months to Zambezi's IP date then you get Jun11.