HD videoconference systems, have a look at this piece. The EyeCrown system was designed for use in everyday homes with everyday high-speed internet connections; the kit contains a set-top-box and a camera, and thanks to some fancy form of compression, a dedicated T1 line isn't required to video chat in high-def. Unfortunately, one EyeCrown only works with another EyeCrown, so unless you plan on buying your mother one as well, you can forget about making one play nice with something else. Folks across the pond can expect it to become available in February of 2009 for a currently undisclosed price.
[Via HDTV Info]