Ideally I want to be able to open the images on Mypassport Wireless in LR Mobile and edit them directly off the Mypassport. That is treat the MyPassport like an external drive.
What I have found is that you can use the upload function in the MyCloud app to open the image in LR Mobile. This will load the file onto your iPad/iPhone and open it in LR Mobile. Not quite what I want to do but its a start. Storage is limited on my iPad/iPhone and will quickly fill up.
To load an image in LR Mobile select it in the MyCloud app then tap the upload icon (top right) then pick 'Open in'. One of the options should be 'Import with Lightroom'. If you have other apps they will appear as well including all the Social media sites. I wouldn't try sending a Raw file to Twitter though 🙂