Re: Nothing new @pPPPP re MP3 players.
Peter.
Once you drop the POSIX requirements of a traditional filesystem many things become a lot easier.
Globally unique identifiers can be randomly generate with a (very) high probability that they will not clash. Sure there may be some arbitration involved but simply making part of the key unique to the generating geo-datacentre would be a big help.
If an object is write-once rather than updatable then replication is a breeze (have the object stored locally? yes - serve it, no - contact the datacentre identified in the geo part of the key to fetch it on the fly and cache it). A worldwide replicated POSIX filesystem would be a weeee bit trickier to achieve with the possibility of multiple writers.
You don't have to "mount" an object store - it's just "there" via an API.
Unshackle yourself!