You could always use the software initiator.. Vmware uses the Cisco one currently, and this is supported via Open-E DSS.

We have been using this since the very first release of DSS server last year. Using shared Luns to house VM's works fine, as does having Dedicated Luns for each ESX Host server.

Not iscsi related but see below...

The only part i have not had full success with yet is using the Fibre channel Target support, with qlogic HBA's, this function was introduced with 1.21... When it is working will be a great addition full Fibre san with open-e..

Hope this helps

Paul