Nice but given that it in somehow relies upon location, it would in itself need the ability to gain that from GPS, celltower database, wifi location database and all of those have there pro's and con's. In that respect it would be nice if there was some agreed, even small space of frequency in this whitespace that is universal and affords the ability asertain location based upon the local dta transmitted on this sudo-syncronisation channel. This would be far more robust and allow worldwide portability to be much easily addressed and also much cheaper as no need for other antenna's to sync up location with the aformentioned means, let alone the number of flavour of location sat systems commoning online in the next few years globaly, so alot of changes ahead (cant wait for the GPS system that gives me real accurate location information by corilating location based on the 3-4 systems that will be up there to obtain this information - triangurlation of locaiton networks, fun fun whoops).
So early day's, but interesting times ahead. just need a waffer thin peace of spectrum thats globaly universal and avoid the whole location need messup's IMHO to make it so much robuster,cheaper, quickerly adopted, longer-life of products beyond what manufacturer says (say its a 2 year product life, after that just becasue you cant pull the lastest databse on locations down as nobody supplies it for your product, despite it working fine legaly in your area, what happens then). But more so in that the location/databse is in so many respects a form of DNS which if not controled rightt does mean alot of problems. Say a device works on wifi location for location - that can easily be spoofed and as such casue people who use device that use that to potentualy use WHITE space that isn't in there true location. So again highlighting that just a small sync channel which is universal would make so much sence on so many levels. If we can do it for GSM and the like then even if that channel is fixed by region, the ability to scan 7 region channels which are fixed is still far better than what is afforded by the current design.