(I always say this:) I don't care much for advertising products I don't own here, but I came across this somehow last night and am smitten: BlueEye Bluetooth interface for iPods
This is the bridge-gap solution for those of us waiting for Apple's much awaited, but potentially never-to-be-released cell/mobile phone with iTunes/iPod integration. I don't use my iPod much unless I'm traveling, so I don't really know how much I would use something like this, but if you look at the details, they really seem to have thought of the whole package. Considering a good bluetooth headset runs in the $60 range, I don't think $100 is too much to ask. If anyone comes across this post and has one, I'd like to know what you think (email me at the address given on my site).