According to Stosh Sketch (via HBO and NeoGAF) Bungie had to "outsource" its Bungie Day gift for this year... not sure what that means, but in a few hours I suppose we'll find out.

UPDATE: Stosh Sketch goes on in that NeoGAF thread to say that this year's Bungie Day surprise is not a dashboard theme, a downloadable map, or the Halo Reach beta reactivated, but will be announced on the web today and will hit the marketplace the day after.

UPDATE: The Bungie Day surprise was outsourced to Rooster Teeth.