I'm using OneNote on my SP3 in both the desktop version and in the "Metro"/"Modern UI"/"Windows Store" version (however you want to call it). I've just created a new notebook using the desktop app and saved it in my OneDrive. Then I opened the Metro app and wanted to open that notebook. However, I'm not seeing any option to do so. At the bottom of the column to the left which lists all my notebooks I see a plus + sign to create a new notebook, but no option to open an already existing one. If I swipe up from the bottom, I don't see any option for opening a notebook either. I managed to open the web-based version of OneNote in Internet Explorer and selected the option to open the section on my PC, which opened the notebook in the Metro app. However, this seems like a convoluted work-around to me. Am I missing something? Is everyone else experiencing the same problem?