Onenote is starting to support various embedded media:
https://support.office.com/en-us/article/Embed-content-in-OneNote-fd5abf7d-abd4-4902-8e5f-93088c45b11d

Would be killer if you could embed mindmups in onenote since that's what we use for most of our work notes and communications. Great if you could see it right there, natively in onenote rather than having to open a browser.