The PC has had a download version of the BBC iPlayer for sometime, but someone with no links to the BBC has now created a download application that works on Mac OS X.
The downloaded shows are in Quicktime format apparently, and are also DRM free, which means Mac users have the potential to download a number of shows and keep them for future viewing without the worry of the 30 day expiry period the BBC iPlayer imposes on Windows machines for downloads.
We assume the software is creating the files by accessing the Flash based iPlayer website, so video quality will not match the full PC version, but file sizes will be smaller.
How long this software will be available is unclear, given the fact the BBC acted over someone publishing knitting patterns for Doctor Who monsters, circumventing its copyright protection mechanisms may result in another action. This seems very likely given that the emerging SeeSaw service is likely to charge for some material, so the BBC may view this Mac iPlayer software as bleeding revenue.
Given that the ratio of downloads to streaming views runs at 1:8 for iPlayer, it remains to be seen if a downloader will be popular for the Mac platform.