already has some DDR3 1375 MHz memory and this might be the fastest one you can buy today. We found out that it is available for $506 at this site here
This is actually not that bad price for 2x1GB of brand new DDR3 memory but compared to DDR2 prices it is ridiculously expensive. Some memory manufactures said that DDR3 at these speeds could easily go even over $600 fir 2 GB.
Samples are also available as we speak.