SAS Roadmap

I had a look at the STA road map [SCSI Trade Association]. Here are the details;

Ultra 320 SCSI [2002 to 2009]
SAS 3 Gbps SCSI [2004 to 2011]
SAS 6 Gbps SCSI [2007 to 2012]
SAS 12 Gbps SCSI [2011 to 2014]

These dates are approximate. 'SAS' stands for Serial Attached SCSI

This page has a description of Serial SCSI;
http://www.interfacebus.com/Design_Connector_Serial_SCSI_Bus.html

And this page has a description of Parallel SCSI;
http://www.interfacebus.com/Design_Connector_SCSI.html

Both pages resides on:
http://www.interfacebus.com/

[Updated 1/30/2010] The most recent road map I've seen dates to 2009 and shows almost no SCSI drives projected to be sold by 2009, while this one indicated SCSI 320 in demand. I guess things changed a bit.