Agena FX and X4 are still scheduled for a late Q3 or early Q4 introduction, but lets talk about the cheaper dual cores.
Both iterations of K10 dual core have been renamed to Phenom X2. The Kuma design includes L3 cache, while Rana doesn’t have it and will end up being the cheaper part. Both cores will end up with Phenom X2 branding, but there will be some part of the brand to differentiate between these two cores.
K10 Kuma and K10 Rana, Phenom X2 cores should be out before Xmas, sometime in Q4. These processors will finally give Intel a tough ride, as they will seriously challenge the performance of the very successful Core 2 Duo.