Benefits of OS 3.9 are:
* Multimedia programs (MP3, AVI, QT, CD)
* AWEB Web Browser
* Genesis Internet connectivity
* WarpOS 5.0
* AmiDock
* Iomega Tools
* More Powerful Shell
* Auto datatype recognition
* Fast search
* Unarchiver
* New Picture datatyp;e
* New tools
* HTML Documentation
Plus
* HP Printer drivers
* 16 AVI Video trailers
* 5 Audio tracks
* CacheCDFS
* OS 3.5 included
* Full colour icons
* Contributed tools: AHI, P96, CGFX, Warp3D, AWNP, LPR etc
Of course this was 6 years ago so some of it is a bit out of date. These days people are concentrating on AmigaOS 4.
