Looks like Debian 6.0 (Squeeze) will be supporting ZFS via the official GNU/kFreeBSD kernel.
This opens a possibility of converting our Debian GNU/Linux cluster's dedicated NAS server from OpenSolaris 2009.06 to Debain. The server connects to the SAN via FiberChannel HBA and to the LAN vi InfiniBand HBA. Probably, it would be pretty hard to get the drivers to work on kFreeBSD.
Supposing all the drivers actually work, would this be a stable setup?