FUD Zilla claims Intel plans to release new X-25 M solid state disks with a capacity of up to 600GB in Q4 2010. This refresh is codenamed "Postville" and it may be manufactured on a 28nm process.
If all goes well Intel should launch a new series of X-25 M drives in sizes up to a respectable 600GB. These drives should replace 34nm Postville drives that are currently shipping and are available in sizes up to 160GB.
The Postville Refresh will bring many drives in sizes from 80GB for the cheapest all the way to 600GB for the fastest and biggest. It will be manufactured in 2xnm process and we suspect that this might be 28nm, if not even smaller, but we need to dig a bit deeper into this to find the right answer.