Great debates! I've read all the posts and links, and want to add this additional fuel to the fire:
-I don't believe there's an expectation that the Brain functions identically on all platforms, e.g. all features are on all platforms. For instance, 'Expanded' views and mass-processing of Thoughts may not make much sense on a mobile phone.
-The ability to quickly access the info (especially Thoughts) in the brain regardless of device or location (e.g. mobile) is clearly Brain Requirement #1 (the core function of TheBrain: store information that can be retrieved or explored via context). But Requirement #2 would be the ability to enter, connect, and classify (via Thought Types and Tags) Thoughts quickly. There are other blog Posts about the primary difference between Evernote and TheBrain being that a deeper 'initial investment' in information storage is required with TheBrain, since a user needs to 'invest' more effort with each Thought entered, to connect and classify it (for better retrieval benefit, of course). I believe TheBrain only 'wins' if that entry-with-metadata is as effortless as possible, regardless of device. P.S. I don't know what their pricing intentions are for the forthcoming app(s), but I believe that I and other Brain power users would gladly pay more/extra/separately to use a deep app, rather than live with a free bare-bones app.
-LogMeIn doesn't resolve the issue that it's not possible to right-click (to access context menus) on mobile devices (phones and tablets) [unless you count devices which have a Bluetooth or attached keyboard, which I don't think counts because that's basically a laptop]. Does anyone know if the Surface Pro operating in tablet mode, or another tablet other there, has a stylus with a special gesture like tap-and-hold or double-tap, to activate/access a context menu? For Windows 8.1 tablets, TheBrain (PC version) would then be a viable application whose full functionality could be utilized natively in the tablet in the fat client, right? (I have no explanation for the weird symptoms that mkabd describes and hope they are not widespread).
-In my opinion, TheBrain could be thought of as a next-generation leap above Apple's Finder or Microsoft's Windows Explorer, e.g. rather than merely being a 2-dimensional folder hierarchy of files on a single device, it is an n-dimensional, cloud-synched organization of anything-and-everything: notes, emails, URLs, contacts, files, etc. However, as much as it would be great, TheBrain is definitely challenged if it is going to try to synch all attached files across all platforms, a la compete with companies like Dropbox. Maybe the two can join forces......? ;-)