The iSCSI Software Initiator has been updated to version 2.03 (Build 3099).  I haven’t tried this latest build with host clustering yet.

You can get the latest initiator from Microsoft Downloads, and a snippet is below:

1. Change to not increase the ExpStatSN if ITT is reserved value for Nop-IN.
2. Fix for system bugcheck in certain conditions after completing error recovery for 5 consecutive lun resets.
3. Change to include Microsoft MPIO version 1.17 binaries in iSCSI initiator 2.03
4.  Fix for memory leak which occurs in the Wmiprvse.exe process when a program calls an instance of the
    “CWin32_TerminalService::ExecQuery” function in Windows Server 2003
5. Fix for stop error 0xDA on some x64 hardware implementations.
6. Validate Max Connections parameter in LoginTarget.
7. Allow logout from Boot Session in case booted from Alternate device.