OSU engineering researchers have come closer to e-textiles by embedding circuits into fabrics, and "the tech could be used to create everything from a t-shirt that boosts your cellphone signal, to a hat that tracks brain activity". One can imagine the possibilities, but I'm not sure how many wash cycles the fabrics can take. The overview is here

http://www.gizmag.com/embroidered-circuits-smart-clothing/42831/?utm_source=Gizmag+Subscribers&utm_campaign=43e6b036ed-UA-2235360-4&utm_medium=email&utm_term=0_65b67362bd-43e6b036ed-91747197

and the original article is here

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=7110536

I thought this was pretty interesting, anyway.