Another one who would try if there was a Mac version.

Can run it via virtualization of course but not that desperate, ITA covers my needs.

I'm sure TheOrbitzInsider knows that, but just to remind others, while Macs constitute about 5% of computers sold, the percentage grows if we consider:
• computers in use (due to longer lifespan of Macs),
• computers used as personal computers (not POS terminals and the like),
• computers used by advanced users,
reaching 25-90% depending on the market (based on my experience).

(It really is up to Orbitz which platforms to serve, just adding my comment for statistics.)