I just wanted to add my $0.02 worth on this subject.
While I think the cloud based storage concept is powerful for collaboration, data security issues aside - and that is a big issue for a lot of folks by the way - I wholeheartedly agree that forcing your user base into a particular workflow is not a recipe for success. I too would far rather see something flexible like the Dropbox type of file-sharing that a previous poster mentioned over the forced "everything has to go to the cloud to do anything" model that is currently employed. I agree with what another poster said, if you force this Cloud based model on your users you will lose a number of folks that don't want to store in the cloud or just don't want to bother with the workflow.
Some examples where the current workflow breaks include:
As a frequent flyer, I hate the fact that I have to pick out the projects that I might want to work on (or need) and set them to offline mode before I disconnect. Similarly, if I am in a place where I only have access via a data card, I'd rather save the syncing until I can get to a big pipe that is free than blow my data budget syncing my F360 files.
I too downloaded some tutorial files and was surprised and disappointed to find that without a network connection I couldn't do anything with them. This is so counter to the expectation that most users have; we expect to be able to open a file on our local system if we have the app installed locally.
I also find there is often a huge latency between what A360 and my F360 client see in the cloud. I'm not sure if this is an anomaly, but it means I have to end up launching a project from A360, onyl to have my local client squawk that it is trying to open the file but that I need to install the app locally, while it opens the project.
Anyway, looking forward to a great product, hopefully it will encompass flexible storage options.