Solid state storage is maturing rapidly, as you can see on this allegedly leaked slide, but AnandTech reports that the improvements aren't all about price per gigabyte -- the 25nm successor to Intel's X25-M G2 is shaping up to be one killer drive. In addition to increasing capacity to 600GB for a 2.5-incher and 300GB for a 1.8-inch size, the publication reports that the Postville Refresh will bring up to 40,000 IOPS in random 4K writes, and transfer larger sequential files with up-to-250MB/s reads and 170MB/s writes. To put that in contex