Isthan: Sparkle is Ayu's new song for Honda's ZEST SPARK CM. As for Roulette, that was probably just a 2ch joke-thing. Don't take that one too seriously.
If anyone has a report or anything, or sees one that isn't linked to in the first post, please try to let me know!
Also, apparently there were these neat dessert bags at CDL with different snacks in them. Yummy!