[quote user="Elliot Leonard"]
I realize that there are a lot of permutations of 128 bits. However, surely bluetooth.org could come up with a scheme that reserves some subset of the uuid bits that identifies the company that defined a particular uuid so that uuids are guaranteed to not conflict with one another?
[/quote]
That would make development much harder as companies would have to register and wait for UUIDs to be assigned, not to mention the added work for BluetoothSIG.
128bit UUIDs do not need any of this overhead to be as good as guaranteed unique.