All, I'm just getting started with hsXenCtrl [1] as both a fun way to play with Xen and become proficient with Haskell FFI. Once I get my community.haskell.org account squared away I'll likely setup a public darcs repo (and a homepage somewhere). As for modules: I intend to expand on the trival FFI bindings in System.Xen.CBindings and there'll be a higher level interface in System.Xen (functions will standardize on returning Either or throwing exceptions, hiding the xc_handle open/close, etc). Typical Disclaimers: The _only_ thing I've actually done with this, just tonight, is pause / unpause domains. API is subject to change! Only my exact build of Xen is sure to work, and no promise even then. TomMD [1] http://hackage.haskell.org/cgi-bin/hackage-scripts/package/hsXenCtrl