I have so far restricted my usage of OneNote to the Desktop version. The reason being that it is simply more complete. However when I do my research I have OneNote open on the desktop (on my laptop computer which is the equivalent of a desktop computer it's complicated, don't ask) and I do a lot of copy&paste from different sources. I then discovered that having OneNote MUI open to the same page on my SP2 I could begin to enter handwritten notes quite easily and after a minute or so those notes will appear in the ON on my laptop/desktop. On the desktop/laptop I have it on a second monitor with 2560x1440 resolution so I have decent oversight, on the SP2 I can focus on my personal notes. Why not just type notes on the desktop/laptop I hear you ask indignantly. Well, the simple reason is I want do differentiate between source material and my own reactions to it. Typing for sources and handwritenn for personal reactions makes it so very obvious. And this is where the MUI version is actually a tad superior with its radial menu. I can easily switch between different pens (blue is martial, green is economics and red is social) a process that is more tedious on the OneNote 2013 version (Desktop).