Here's some comments:
- The take a tour image is pixelated and ugly.
- It needs something more compelling, IMO, as a reason to use it. It is a neat widget, but nothing I'd think of using. Maybe there are some cool use cases that would get people excited about it.
- After just a quick glance, it feels like something that might be good as part of something else.
- Clicking and dragging on a timeline (the blog one, for example) is hard because there is too much 'link space' (even where there are no words) as opposed to 'drag space', if that makes sense.
The images are pretty bad, so I will try to do better ones this weekend.
As you and terpua wrote, it would be more useful if one could use it on a blog for visualization of entries, etc., and that is something I want to work on in the near future.
I will post it as an "Ask HN" item soon.
Timelines are usually manually intensive to make "pretty" and automating that would be nice.