I have just registered on the site as I believe that this is the best forum to have a disucssion about RTLS.
I have recently left the NHS after 10 years to go to a company called ekahau. We do this asset tracking that you have highlighted, and now have it installed in a number of NHS sites, as well as other industries.
As you are all aware the NHS are starting to take up wireless technology, however this type of tech is still very new in the UK.
I have sent a mail to the admin of the site as I certainly dont want to come across as a salesmen (which I would like to add im not, im the techie). However I am more than happy to answer questions, and if you would like us to come to your sites to give you a live demo of the solution providing you feel you have the scope and requirement to use location tracking then I am more than happy to do so.