I want the app to open to my starred folders and not my recents. I use my phone to scan documents. I use starred folders to quickly place those documents in the right location. I basically never need to see my recent files in the app, so opening the app to that view by default is a waste of time for me. I imagine everyone uses Dropbox in their own way, so being able to customize what tab the apps opens to for each user would be a huge productivity win.