Been playing around with the iPad Pro in terms of offline documents and synchronisation and it's actually not that hard a problem to solve if you try to understand the problems and the best way to solve it. The biggest challenge for me was trying to deal with the number of sources of data. i.e. on your laptop/mac, you have dropbox, google drive, one drive, sharepoint, etc.
Ultimately to achieve a file system you can navigate, you need to consolidate these without consolidating them. I.e. have one single location to view them but keep them separate if possible.
This was actually surprisingly easier than I expected. I started by trying to get a decent offline tool for sharepoint, but although a number of them offline sharepoint content, the moment you have large volumes of content, they actually aren't that great. Dropbox on the other hand is great in terms of file synchronisation, but terrible from an iPad perspective because their app doesn't actually allow you to offline a folder. Eventually I found the answer with a tool called cloudhq and readdle documents.
Readdle documents allows you to offline dropbox on your iPad with folder structures and cloudhq allows you to consolidate all your cloud accounts to a single dropbox account so by using these two, you get all your content onto your iPad Pro, offline editing, ongoing synchronisation and you can open in whatever app you want. It does result in some duplication on your mac but this is easily solved by not using one drive (which is dismal anyway) as all of your one drive documents are now synced into a folder in dropbox called Office 365. It even syncs subsites which is great.
Now, the above is not dissimilar to anyone who runs multiple machines. I.e. if you had a mac/pc at home and a laptop, you would need to synchronise them so it's probably a negligible additional effort.
Ultimately to achieve a file system you can navigate, you need to consolidate these without consolidating them. I.e. have one single location to view them but keep them separate if possible.
This was actually surprisingly easier than I expected. I started by trying to get a decent offline tool for sharepoint, but although a number of them offline sharepoint content, the moment you have large volumes of content, they actually aren't that great. Dropbox on the other hand is great in terms of file synchronisation, but terrible from an iPad perspective because their app doesn't actually allow you to offline a folder. Eventually I found the answer with a tool called cloudhq and readdle documents.
Readdle documents allows you to offline dropbox on your iPad with folder structures and cloudhq allows you to consolidate all your cloud accounts to a single dropbox account so by using these two, you get all your content onto your iPad Pro, offline editing, ongoing synchronisation and you can open in whatever app you want. It does result in some duplication on your mac but this is easily solved by not using one drive (which is dismal anyway) as all of your one drive documents are now synced into a folder in dropbox called Office 365. It even syncs subsites which is great.
Now, the above is not dissimilar to anyone who runs multiple machines. I.e. if you had a mac/pc at home and a laptop, you would need to synchronise them so it's probably a negligible additional effort.