There appear to be "V2" 1350 NICs available now, eg:
Amazon.com: Intel I350T2V2 I350-T2V2 ETHERNET SERVER ADAP RETAIL UNIT: Computers & Accessories
What was the revision for? Does it have anything to do with the intermittent problem I've been having with my i350-T2 (purchased before V2), where the NIC will disappear upon system reboot?