How original. A comment mentioning reader and wave on a new Google product announcement thread. Can we move on already? Innovating companies try and fail a lot, like any startups.
If you think it's interesting, better go ahead and use it now then. Otherwise, if it's canceled, you'll never even know if you would have been missing it.
Mine was, "Cool; how long's this one gonna last?" It seems like a neat idea, but I bet the novelty is going to wear off pretty quickly.