Hmm, I wonder if trackIR4 owners will have access to the new software?
EDIT: Answered my own question:
Version 5.0 - Beta 01
(posted May 1, 2009)
(.exe 6.4 MB)
• Supports TrackIR 5, TrackIR 4

RO
• Note: TrackIR 3 with Vector support will be added in version 5.1