Olive is a new “free, portable, non-linear video editor built to compete with high-end professional video editing software”. Interestingly, it “reminded us a little of Camtasia Studio without the big price tag”, states MajorGeeks, testing the more stable 0.1 alpha. There’s also a nightly build 0.2 alpha as portable or installer, which is likely to be unstable for now.
The MajorGeeks comment about Camtasia was enough to make me test it. I could not get 0.2 working, and I found the 0.1 alpha did not have any Camtasia-like screen capture and annotation features. Still, it looks like a good basic no-nonsense free video editor, and works back to Windows 7.