From my perspective the ideal solution involves a network attached 1TB+ of storage which all my machines can back up to (similar to Time Capsule). This drive in turn should rsync to one or more off-site locations.

You have some cool technology, don't get me wrong. But from a user perspective I don't care how my data is stored as long as I know I have n copies, where n depends on my paranoia level (one local and one remote copies probably works for most people).

Agreed. I have a time capsule here (works very well) but we're also looking at this technology to provide that added backup level. As we all know, its only after a disaster that many people put solutions in place