This is all very convincing, but frankly I'm still not 100% sure about the BkSp key.. if forward-backward navigation is implemented (and I intend to implement it eventually because I think this is a very organic feature), we will desperately need BkSp for "Back". Any ideas here?

Do you have this problem only with OneNote? Can you paste text from Word, Excel?

Thanks for the info!

We now plan for 10th of April. But unfortunately there exists a tiny probability that hierarchical tags wont' make it into this release, they are quite tricky to implement. Right now the following commercial features are implemented:
- Multiple notebook support
- Export to HTML
- Pasting notes on Ctrl+Enter

Sorry for the delay.
I think your suggestion is sound. If people vote for it, it will be implemented without many problems.

Check out this suggestion: http://roadmap.cintanotes.com/topic/92954-tag-sidebar-display-only-related-tags-on-double-click/

To avoid the Linux dilemma - "You can configure everything. And you f*cking WILL be configuring everything.." Sorry for the language ;)