An
article in the Saturday Guardian started with this line. It rapidly becomes more on a discussion on the dominance of Amazon, what this means for ebooks in the future, and takes the position that ebooks may be bad for authors (not that well argued in my opinion, but I suspect that was more due to space than anything).
Still, it is interesting to see an article after the fuss over the initial release of the PRS-505 in the UK has died down.