The impact of this information is that we need to be aware of how our users are connecting and how we need to design our content.
Many people design for the LCD or lowest common denominator.
Mainly watch the file sizes of images and other media. When dealing with audio, do not put the full wav files out there, to much download time, use the streaming technologies, which chunk the data to the user. Also when using audio, use it to complement text NOT to repeat text. As for video streaming, it is best to deliver this in short segments, use it to make a point, give an example or demo a concept. This involves asynchronous discussion, synchronous chat, and E-mail.