I have a GroupWise 802 system with 35 POs running mainly on NetWare 6.5.7. I have upgraded core servers to OES11 / OES2 and will slowly upgrade regional servers to OES11. My question is can I move the core GW 802 up to GW 2012 with 2 WebAccess gateways for 2012 and 802. Is this type of staggered upgrade feasible also is it possible to move users between 2012 POs and 802 POs both directions. The upgrade could take 6 to 12 months. Any other problems? Thanks in advance.