Our sources indicated that this should be the last of socket 939.
AMD wants to focus on socket AM2 and DDR 2 and wants to get rid of the 939 CPUs. This brought about some amazing price cuts and we learned that you can buy retail AMD Athlon 64 3700+ San Diego 90nm (Socket 939) for £93.94 Including VAT.
An Athlon 64 San Diego 90nm core at 4000+ costs £158.57 including VAT. I don't think you can get those for much less than that and AMD wants to fight Intel even on the price front. It wants to be ready for some review losses when Conroe arrives.
You can buy those CPUs here but as the link says, this week only so hurry up. µ
See Also
Opteron S939 to be replaced with AM2