Having had the use of one for a week, I'd say this review was really fair.

I gave the OLPC to my 7 year old for the night and he used the oscilloscope, the music tool, the programming GUI and the etoys.

He was very frustrated that he couldn't save his work. He expects to be able to do that and more importantly come back to it another day. We found it hard to make any stored favourites last until the next session.

I would also agree that video is important in education and sharing information in commuties. Many OLPC candidate countries have access to mobile phones and can take video's of say how to build a well. Not being able to reliably replay that on the OLPC could be disappointing. Not to mention being denied access to the video material being provided in terms of lecture slides (youTube in particular).

However, I do wonder how a person would get on with it if they were not computer literate.