Hi group: please excuse the promotional nature of this post, which I've also posted on the Spectrasonics Yahoo email list:
I've authored the "Core Omnisphere" tutorial for Mac Pro Video. This 3-hour+ video serves not only as a detailed guide through Omnisphere's functionality, but also as an overview of synthesis techniques in a more generally useful fashion. It complements Spectrasonic's own video tutorials by thoroughly covering the "whys" as well as the "hows" of the interface.
I hope it can be useful to some of you Omnisphere users.
Thanks! - Jonathan Perl