sometimes it's done for voting control, where preferred (voting only) shares are issued, and the AS has to be high enough to accommodate that.
however, most of the time it's done to dilute shareholders.
in this case, i don't know enough to comment on why the AS is that high in relation to the OS.
my hunch is the former shareholders of AvWorks will own the post-RS portion of the OS, and the newco will issue themselves shares out of the remaining (AS). if the final OS, post-1:30 split, is 90M, they then become approximately 10% owners of the newco.
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