Calimanjaro does look interesting, and somewhat familiar, in fact it looks exactly like Yagoon http://www.yagoon.com/index.htm
And here is the rub, neither look like they are currently being developed. Both just sit there collecting license money which is a real shame because once you get use to the views, its magnificent.
There are a couple of bugs that need attention. ie. in multiday view, some events do not show up in the far right column if they start after 1200
so in a simple two day view, you really only get 1.5 days.
the versions are different, and I will try Calimanjaro just to see the differences.
I will email Calimanjaro, as I had no luck contacting Yagoon
March 18, 2007
Calimanjaro 1.1.3 has been released.
March 14, 2006
Yagoon Time 2.3 has been released.
The ical function is great though, and I wish more calendar applications utilized this.
Edit* Yagoon (time.exe) is very heavy on memory, considering it sits in the tray all day, this can be a burden.