We mentioned back in early December that Mushkin had a brand spanking new mSATA SSD in the works that was the world's first 480 GB version using that interface. At the time they knew that drive would be launching sometime this month but they had no specific date. That SSD is now obtainable to buy.
The drive supports TRIM, ECC, and has user upgradable firmware. The maximum read speed is 540 MB per second with maximum write speed of 425 MB per second. The drive is also able to 78K random read IOPS.