I was reading with some in A Kindle World blog and the article British Library Books Follow-up: Enhanced Versions on iPad with Option to Buy Printed Copies at Amazon
What happened on the British Library books?. I had heard the British Library was to release these in February.
TUAW has reported though that Ipad has stolen a march on the kindle, by getting these books first. It also seems the Ipad App is only available in the USA. Thats so clever BL!