From what I understand Ketron still want to finish a few more Audio Styles to include with OS4, plus some other finishing touches. The Audya used for the roadshow was the same as the one used at last May's demonstration in Pakefield.

Robert Messier says it will be released in the coming weeks but could not give a specific date (he knew when his elements would be completed but not the others working on the project).

Deployment of the upgrade in the UK may be done via the dealer network in a series of 'Update Days'. Customers can bring their Audya along to the nearest reseller where a specialist will update the keyboards for them. But as we learn more this may change too nearer the change; it all depends on how the final package is released and if Audya owners are concerned about damaging their instrument.

In other words everyone that saw version 4 on the roadshow was extremely happy, and are content to wait a little while longer while the loose edges are tied together.