So, I've noticed in steam, in the Skyrim properties of beta is says there are two private betas. What does this mean, does this mean they are beta testing something new, or am I looking at that wrong? One is loctest the other japantutest something or other. I was just wondering, I always put accept the beta patches and such, that's how I noticed... that two of the beta require passwords. The question being, what is this private beat for? Don't they only do that for official patches, dlc, and such?

loctest is probably the beta for the recently released Patch 1.9

japantutest probably stands for Japan Title Update Test, likely for the same patch for the Japanese version of the game.