Key words : early summer and late summer. In US early summer is usually regarded as beginning of Memorial Day(May 30) while late summer (or end of summer season) is the end of Labor Day(September 5).
Also,how can they be pulling in Llano ahead of BD for desktop when officially AMD stated : H1 for Llano and Q2 for desktop.Now Llano is Q2 intorduction,so still H1, while BD is Q2 (early summer,probably meaning end of May). They are just one or 2 months apart.