You can get a 10Gb converged network adapter from Emulex with iSCSI HBA offload, and you can get a 10Gb NIC from Intel with RJ45 connectors and 10GBASE-T, but you can only get a 10Gb Converged NIC with iSCSI offload and 10GBASE-T from Broadcom. I expect about the time server OEMs start shipping their branded version of the BRCM 957711 NIC from Broadcom, previously announced switches from Cisco will be generally available with 10GBASE-T ports. The combination of the two will give data center managers access to a complete 10GBASE-T solution from two of the most trusted names in networking.
The bottom line is that the astounding growth of iSCSI can't be ignored by the storage or networking community, while accelerating deployments of 10Gb networks has created demand for cost-effective 10GBASE-T technology. With 10GBase-T NICs and iSCSI offload now available from a major vendors like Broadcom, I expect the markets and market leaders to move front and center in the plans of data center managers, OEMs and investors.