I came on to here asking for that too. I already have a regular tripod for digi-point&shoot camera and works for the hand held camcorders - screw in on the bottom. So maybe if there's an ipod dock that uses a normal mini tripod dock screw that'd be really cool.
nm found some on ebay haha. some generic tripod mounts that fit various phones etc
just bought this for my tripod. They have auctions with tripods too for only a buck more. tripod mount holder
My tripod came with 2 things that screw into the camera so I cut out the screw and glued a little stand that came with my switch easy rebel case and I was done... It wasn't the sturdiest but it worked!