After watching Paul Thomson's usually wonderful walkthrough, I must say that I'm rather disappointed. While I was reading the blurb about Orbis on Spitfire Audio website, my initial impression was that this is something more similar to Earth and Stephenson Steam Band: an encyclopedia of synth sounds like pads, plucks, bells, mallets, flutes etc. made from the organic field recordings. But as someone's mentioned before, it seems that this library is mostly centered on loops, patterns as well as recorded musical performances. From one point of view, this is due to the nature of the source material used here. I imagine that Mr. Fanshawe was capturing various moments on his travels that usually involved performance by the local musicians, rather than "sampling" the actual ethnic instruments and sounds themselves. On the other hand, Spitfire Audio is more and more embracing this concept of using a recorded performance as the sound unit which is evident in their recent products. Personally, I'm much more interested in their traditional libraries.
All this aside, Orbis will probably remain on my purchase radar. Such a collection of sounds could indeed come in handy, though I must say that it would be quite a luxury for me to purchase this right now. But in the future and with the right discount, who knows?