I haven't seen anyone mentioned getting this to work so I thought I'd pass my success story along.
All I had to do was open an Airdrop finder window on my Mac and select "Airdrop:Everyone" from the drop down at the bottom of the window. My phone popped up immediately. And vise versa, my Mac now shows as AirDroppable on my iPhone.
Really? I can't even get AirDrop to work between my iOS devices running iOS 8. What type of files can you send from Mac to iOS via AirDrop?