And so finally, almost six weeks after Hachette embarked on its "short" transition to agency terms, Amazon has acquiesced.

A short note next to Kindle Editions published by Hachette, Penguin and HarperCollins now reads: "This price was set by the publisher."

And so the fun begins. A thread on the Kindle blog appeared first thing this morning, with the title: "Big price rises for ebooks".

Here are some out-takes:

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"This morning at least one Jill Mansell book has actually doubled in price overnight to nearly £9!"

Jill Mansells 'Take a Chance on me' now £8.99, thats the one that was around £5 yesterday - publisher is Headline, all her other books on my list are now priced at £4.49, with one at 3.99

Maeve Binchys 'Finding Frankie' is now £9.99 that has been as low at £7.60, publisher is Orion, also her 'The Maeve Binchy Writers Club' is now £9.99, that was around £6.50 yesterday, all her other books on my list are between 3.99 and 5.69

Elizabeth Chadwicks 'The Running Vixen' has jumped about £1.50 to 6.99, publisher is Little Brown Book (I think they are part of Hatchet)

Elizabeth Buchan's 'Seperate Beds' was the smallest increase, it went from £4.27 to £4.99, publisher is penguin

The only book on my wish list that went down overnight is 'The Peoples Queen' by Vandora Bennet, the publisher is Harpercollins

Michael McIntyre and Stephen Fry have more than doubled to £12.99 overnight. Stephen King's After The Sunset, which I was thinking of buying yesterday for around £5 is now £17.99.

The Michael Caine autobiog, Hardback £9.00, Paperback £5.99, Kindle £12.99

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I've said before that I think publishers should speak out to their customers about the importance of agency pricing, but I doubt they will. Penguin has written to agents; Hachette has issued one short statement to The Bookseller. Perhaps they like being seen as the bad-guy.

In the meantime, there are bound to be anomalies of the kind highlighted above, particularly as publishers transition different retailers, and perhaps even different titles to the new model.

There may even be longer term confusion as publishers learn how to price to the end-consumer.

For instance, it simply cannot make sense that The Fry Chronicles is now cheaper to buy as a hardcover book £9.76, than an ebook (£12.99); or that Michael McIntyre's  Life and Laughing is £3 cheaper to buy as a hardback, than a Kindle edition; while Life by Keith Richards is a pound cheaper as an e-book than a p-book.

However, the fact that Michael Connelly's The Reversal is priced at £5.99 as a Kindle edition, compared with a hardback street price of £9.49 does hint at something a bit more sophisticated to come.

Interestingly, the Amazon Kindle bestseller chart features four agency priced books in its top 10, the most expensive of which is the McIntyre. Perhaps of greater interest is that Stephen Fry's first memoir Moab Is My Washpot (priced at £2.84 by the non-agency folk at Cornerstone) is now outselling the Kindle version of The Fry Chronicles priced by Penguin at £12.99.