Data that's today inconceivable to transmit usually comes from science. this data is usually being sent via HDD. i don't think it fits the home.
The data from/to the home would be cameras and video streams. i don't know any other sensor technology that generates massive amounts of data and being used in the home.
Maybe some sort of GPU cloud , if the bandwidth is good enough. but usually bandwidth costs more than computing so it would make more sense to gather the GPU units closely.
Omni-video sounds interesting , could you please tell more about the experience ?
I went to the OmniMax theatre at a sort of Technology park in Singapore (about 20 years ago!). I actually haven't seen one anywhere else; the closest is iMax. Anyway, it was a huge hemisphere, enough to cover a large cinema's worth of people. The seats were tilted back by about 45 degrees.
Because my peripheral vision was covered, when the camera tilted, it actually felt like everything was tilting. The movie I saw was taken from a plane, and so this happened whenever it banked. The bandwidth needed was massive - IIRC, they used seven 35mm cameras, and superposed them with seven projectors. The sound was via speakers placed at various locations behind the hemisphere.
I've seen a couple of iMax movies (with an extremely large, though flat screen), and the effect doesn't occur. It's a lot more expensive to make a hemispherical cinema, I think. However, I recall a youtube video of a guy doing it within a simple tent (compensating for the corners not being spherical by distorting the image projected).
BTW: you make a nice point about considering sensors in the home, but also consider what sensors it would be great to have, perhaps using yet-to-be invented technology. eg. a sensor that could register the exact 3D contents of a room; or brain activity; or all your sensory input nerves (brain in a tank anyone?); downloadable objects (auto-milling machines - but probably don't require massive bandwidth, unless it was ridiculously high-resolution, say approaching molecular levels - effectively, matter transmission). An interesting constraint is that lag will probably prevent interesting real-time applications.
There maybe hybrid applications, eg to progressively download massive hires textures in a MMORPG or sandbox game or games like the videodisk-based Dragon's Lair (I think the limit here is that they are so expensive for artists to produce in the first place - perhaps the breakthrough needed is a way for amateurs to generate excellent/interesting textures? Perhaps consumer HD cameras will do this). Maybe motion capture, as in project natal (but I think the bandwidth needed is pretty low... again the problem is latency).
The data from/to the home would be cameras and video streams. i don't know any other sensor technology that generates massive amounts of data and being used in the home.
Maybe some sort of GPU cloud , if the bandwidth is good enough. but usually bandwidth costs more than computing so it would make more sense to gather the GPU units closely.
Omni-video sounds interesting , could you please tell more about the experience ?