Thread Subscription Daily

Right now when a user is subscribed to a thread they get a seperate e-mail for every single thread. Even on a small forum this can get anoying insanely quickly when your inbox is being flooded with messages.

Is there a plugin or some what to send people a digest of their subscribed topics once a day? Does someone have it in the works maybe?
Any word on this being implemented in 1.2? I've searched around but couldn't find it. I really need this as a basic feature on my forum.