Well, from what Dave was saying on the last mailbag, he has seen it and likes the interface, but has concerns over the cloud "wank", and as he has said, it's not Altum, if you go with the mindset that it is a different product then you might be able to forgive the cloud, I did say *might*!
But I guess Altium must at least read some of the comments as they sent Dave some stuff, they might not like what they read though as they sent him a large T-shirt! 
It seems a touch pointless to me to have an offline tool that can only save online.
I think it won't matter much among the people who Altium are aiming the product towards. I also don't think it'll matter much to most people, if the tool is a good tool otherwise.
The main complaint seems to be something like "how can I work offline, if it's cloud only" and that has been answered; it caches locally so one can work offline. How many really work offline, though, while designing circuits? I'm always looking things up and checking pins and emailing or instant messaging people I know with questions about this or that while I design. Personally, I can't design while offline even with an offline tool, so the cloud connectivity portion of this is of very little concern to me.
Another thing that I think is overlooked is that there is going to be a community built library available to all users of the tool, and every device in a library is required to be mapped to a specific part in Octopart. ALL the jellybean stuff will be either present on day 1 or created within the 1st day, and as time goes on, the need to even dink with your own footprints or 3D models will entirely go away. I, for example, intend to contribute 3D models whenever I can, as I have a bit of experience in this area. The 3D feature is useless to people without 3D modeling capabilities if the libraries aren't shared, so yay sharing.
I'm looking forward to it.