When you need to share a pre-release version of a game with a showcase, reviewer, alpha-testers, etc, what do you do? I know Steam and VivePort offer some closed alpha-release options. I've seen a service mentioned called "Pre-flight" on the MIVS FAQ (http://super-archive.magfest.org/mivsfaq) but I can't seem to find it. What other options are there and how well have they worked in your experience?
-M