Terrible assumption, no one has even seen the thing yet, and you already know you won't like it? Just a fanboy I presume?
This OS will hinge on being able to do productive things ie. email, web browsing, rss, create/edit .doc files, photo uploading, while being as light and simple as an ipod touch. It needs to make people feel like it isn't an OS at all, but just a thing to launch their favorite activities. Pair it with a 8-10" netbook that has great battery life and a decent keyboard, and I'd be tempted to bite.
Think ipod that runs multiple apps with a full keyboard, and can run on new, small, expensive tech, or old, bulky, lying around tech. Put it on your netbook for on the go, or put it on your grandma's computer and not have to spend every holiday teaching her how to use it.