Not content with taking on the iPad with the Kindle Fire tablet, Amazon wants to take over the iPad with its Kindle app for Apple's all-conquering slate.
The newest version of the Kindle for iPad app brings a host of improvements that give the application a much more rounded and complete feel and gives Apple's iBooks portal a little more to think about.
Among the iPad-only changes include a new magazine interface design, which is aimed at matching Apple's own Newsstand app. For students there's also a 'print replica textbooks' feature which makes it easier to follow what's going on in class on your Kindle app.
Among the changes is a new built-in PDF reader which will allow files to be opened from Mail or Safari or following a direct transfer from iTunes.
There's also a new "Personal Documents Service" which, for a fee, allows users to directly email their documents to their Kindle devices through a Kindle-specific email address.
The PDF reader and Personal Documents are also available in a new iPod touch and iPhone version of the Kindle app.