10. The method of claim 9 , further comprising: transmitting the metadata stream to the personal annotation output device; rendering the metadata stream by the personal annotation output device to generate non-textual annotations in one or more modalities supported by said device; outputting the non-textual annotations to a user of said device.
10. The method of claim 9 , further comprising: transmitting the metadata stream to the personal annotation output device; rendering the metadata stream by the personal annotation output device to generate non-textual annotations in one or more modalities supported by said device; outputting the non-textual annotations to a user of said device. 13. The method of claim 10 , further comprising automatically identifying a type of non-textual annotation required by the user of said personal annotation output device.