While there hasn't been an official announcement yet, iTunes 4.9
with podcasting support is already available for direct download or
via software update on the Mac.
However, you won't find any podcasts yet as the directory is currently
empty. We'll keep you updated throughout the day as we await the official announcement and details about that
"big corporate content partnership."
UPDATE: the podcast directories are coming online now globally — Engadget is the 4th most popular on the US store — c'mon folks…move it up.