The only disappointing part of MeeGo for me is that Nokia's image includes binary-only software (e.g. phone app & battery management).

I was hoping they would open-source the above systems. It means we would be stuck with Nokia's phone application - judging by what Nokia released on the n900.

There is an open-source image but there is a "big fat warning" stating you may damage the battery if you install the image on the n900.
(This image is ideal for installing on a "development" PC)