There are literally dozens of open source content management systems available to download, plus many commercial ones, not to mention Microsoft Sharepoint, so why would anyone consider using a VLE as an intranet tool.
Well in short, we did.
Moodle has some great interactive tools (activities) and some unique ways of displaying information (resources). And we felt that these tools could be used effectively in an intranet environment.
In order to maintain compatibility standards we use FLV files for all of our videos in Moodle. This then uses JPlayer to stream the video. However, JPlayer is a flash tool and therefore videos do not work on the iPhone.
To get around this I have embedded my iPhone detection script into mod/file resource on Moodle. I then upload an .mp4 version of the same file, in the same folder as the .flv version.