This was reported awhile ago in ars technica, but I thought it was significant enough (at least for our business plans) to post here.
A study by Forrester Research found that 27% of online adults in the U.S. have a home network. One third of all these home networks are now used to stream music, movies, TV shows, and other media throughout the home.
Some of the numbers used in our business plan to estimate potential market size are based upon a typical user who is tech savvy, etc. If the user has a home network, specifically used for entertainment purposes, they are more likely to be interested in a product like ours, as opposed to someone who doesn't. It is interesting to note that one of the biggest reasons given for using their home networks for entertainment uses was for streaming music.
It's nice to know there is an actual study that shows how many people who fall into this category.