I love cordless freedom!
The ability to zip around the house without a cord is wonderful. I wouldn't want a corded Dyson Digital Slim, for instance. The Supralite/Freedom already came with a very long cord, but this seems like a variation of the series that could do very well.
Bissell has a model called the Anna, that is a cordless machine, but with an optional cord if you need more cleaning time/the battery dies, etc. The machine looks like a disaster, honestly. However, the idea of a "hybrid" vacuum cleaner, maybe could put minds to rest, worried about the cleaner's life after the battery wears down, several years into ownership.
I'm loving the cordless revolution finally coming to the vacuum industry. I certainly wouldn't want a permanently corded laptop or cell phone. Bring it on!