I was getting all excited for nothing because I thought the 3400+ was going to be for socket 939. Actually, I did see it in their roadmap. And it's supposed to come out shortly.
But, I find they do everything sort of screwed up. I mean, by the time you might be able to afford a dual core to replace that Sempron, the socket M2 motherboards and CPUs might be inexpensive enough for you to want that instead. It's real odd.
The real question is, if they plan on coming out with a Sempron 3700+ next year, how in the world will they justify the high prices for all their other CPUs? Their roadmap doesn't show any huge speed increases. I'm very suspicious of that.
I went ahead and ordered an XP 3200+ to replace my Duron 1.8 GHz because I decided if they're going to play their cards like that, I'm better off buying a faster CPU right now then waiting two years to upgrade instead of one year.
Besides, all the 64 bit and multi-core (multi-threaded) software will only be widely available in two years anyway.