It looks like AMD will release the Athlon 64 X2 3600+ in the third instead of in the fourth quarter of this year.
Targeting on Intel Pentium D 945 (3.4GHz/2MB x2 L2/800MHz FSB/No VT), Pentium D 915 (2.8GHz/2MB x2 L2/800MHz FSB/No VT), and the upcoming Core 2 Duo E4200 (1.6GHz/2MB/800MHz) and Pentium D 925(3.0GHz/2MB x2 L2/800MHz FSB), X2 3600+ is expected to priced in $130~149.
As we reported before, AMD Athlon 64 X2 3600+ is a cheaper version of 3800+, both clocked at 2GHz, but halved the L2 Cache to 256KB x2. According to the internal test from manufacturers, 3600+ is a little bit weaker than Pentium D 945, similar to Core 2 E4200, but faster than Pentium D 925/915. It will be a big obstacle to clear up Pentium D if 3600+ got a right price.