320, and promised sequential read / write speeds of up to 500MB/s and 450MB/s. None of this is especially thrilling, perhaps, when you recall that a similarly-specced SSD, the SanDisk Extreme, topped even the premium Intel 520 in recent benchmarks, but it all starts to make sense when you look at the pricing. SabrePC lists $149 for the 120GB variant, which is a full $40 cheaper than SanDisk's rival, $60 cheaper than the Intel 320, and only enough to pick up 60GB-worth of Intel 520. There are also 60GB and 180GB flavors, listed at $89 and $234 respectively. Assuming these prices hold tight, and that there's no repeat of the 320's firmware issues, this could be a bargain drive worth waiting for.
Update: Amazon UK helpfully lists April 13th as launch day.