Add an option to the right-click menu to open a file (word, powerpoint, video...) in the browser (in the way OneNote links work in explorer)
Imagine you have synced your onedrive to a pc, and you don't have office installed. If you want to edit a word document, you would just have to select the File in windows explorer and choose "view/edit online". It would open the document in the web app in your standard browser.
Right now you could choose the option to share the file through onedrive, which would open the browser and navigate to the file, but not open the file itself (in case of a word document for example). Its also unintuitive if you just want to view the file.
Even better would be an option to automatically link file extentions to onedrive web apps. At least until the modern office apps are available.