walkthrough of Document Companion for Mac
I noticed that WebWorkerDaily has posted a great walkthrough of Document Connection, which is the standalone app that my team created to help Mac users access SharePoint and Office Live Workspace.
I use DC all the time to connect to SharePoint sites. For example, all of our specifications for the features that will be a part of the next version of Office:Mac are stored in a SharePoint site. This app makes my life much easier, since I have lots of specs that I need to review.