The beta of the Windows Phone 7 connector for Mac is available to download here:

http://www.microsoft.com/downloads/en/details.aspx?FamilyID=1fe7ea0f-3ad6-4137-8397-d412a3792c33

It basically allows synchronization music, videos, podcasts and photos from iTunes and iPhoto to your phone.

I'm sure this will make some people quite happy :)