[Staffslug] Linux VTL

I have been searching for free VTL (Virtual Tape Library) software and have finally found this product (http://linuxvtl.googlepages.com/) which is great coz it runs on Linux and is free :) Now I felt that this may be of interest some of you guys that would be involved in various backup solutions for Linux based networks. From what I can basically gather is that this runs over ISCSI so would also be of use in producing a Linux based SAN as well (I need to check this out further) In any case this could be if the product is stable and use-able enough an excellent backup to disk solution before writing off physical tape. Has anyone come across this product before? Would anybody find this product useful? I need to get it installed and test it before I can decide if it is good enough to deploy in an SME environment. /Mark