Yep! The soundtrack is up on all three now, though the Rooster Teeth store doesn't have the physical CDs yet. :(
Went ahead and bought it on Amazon since I'm impatient (and I had some leftover credit there). :)

Links:

• Amazon: http://www.amazon.com/Rwby-Volume-Soundtrack-Jeff-Williams/dp/B00GNKI2PG
  
• Google Play: https://play.google.com/store/music/album/Jeff_Williams_Rwby_Volume_1_Soundtrack?id=Bjdaygrkiikngjiy5gegwrn3clu
  
• iTunes: https://itunes.apple.com/us/album/rwby-volume-1-soundtrack/id745643837
  

Rooster Teeth Store CD still pending: http://roosterteeth.com/news/entry.php?id=2925884