AMD Athlon X2 BE-2300/2350 CPU's has hit Japan and are already available for purchase. With a 45W TDP these chips has been specifically designed for AMD's DTX formfactor.
But rather more interestingly, AMD will have a new model out shortly, the BE-2400. This part is clocked at 2.3GHz with the same low 45W TDP. It should cost around €102 when it arrives.
The BE-2300 is clocked at 1.9GHz and has 2x 512kB of cache and costs around €69, while the BE-2350 is clocked at 2.1GHz and features the same 2x 512kB of cache and should cost around €85.
You'll need to upgrade your BIOS on your current motherboard for these socket AM2 parts to be recognised properly by your motherboard.
You can find some more information as well as some pictures of the processors over at Akiba Hotline