My understanding is that the SLS that comes with the mini is slightly different that the retail package and won't run on anything but a mini. And knowing how the OEM disks work, it probably won't work on anything but the current mini. I have read that the late-2009 mini SLS will install on any late-2009 mini, so I expect that the mid-2010 mini SLS will install on any mid-2010 mini. So the market would exist but would be small (how many purchasers of the basic mini would want to buy SLS, since for the additional $300 you get SLS, 2 GB more RAM, a faster processor, and triple the hard disk capacity?)