Too bad. OpenDoc had an arguably cleaner architecture than OLE (its early competitor), but we all know clean architectures don't move products. Remember Beta versus VHS tapes in the 1980s? OpenDoc was announced in September 1993 as a key technology to enable cross-platform sharing of documents and applications. In much the same way that Microsoft Office users can have an Excel spreadsheet inside of a Word document, OpenDoc users could embed one app inside another. Except OpenDoc was to work across platforms: Windows, OS/2, and Macintosh. Microsoft's OLE technology is heavily WinTel-biased. By December 1996 Apple said there were fewer than 20 OpenDoc applications commercially available. I think OpenDoc is part of OS/2 Warp 4, but I'm relying on rumors. I stopped playing with OS/2 when Warp 3 came out in 1995. But that's another musing…