It seems AMD's plans for a tidal wave of releases this June have been scrapped, with reports saying that the FX Series CPUs (which are based on the new Bulldozer platform) have been delayed and are now expected to be introduced in July.
Apparently these first chips based on the Bulldozer architecture are having performance issues so AMD is preparing a new stepping (B2) that would bring them up to speed and ready to fight off its competition. The FX Series processors (codename Zambezi) are made on 32nm process technology and will be available in 4-core, 6-core and 8-core flavors, in an AM3+ package.
All is not lost on the new release front though as AMD 'still' has its A Series APUs (accelerated processing units) which will invade the mainstream segment both on the mobile and desktop front. For higher-performance AMD parts we'll just have to wait a bit longer.