Is the Kindle or the IPad better for viewing PDF files

I am lucky enough to have an IPad and I won a kindle in a competition last year at the Business of Software conference. Both of them get used everyday. The IPad is fantastic for multi-media access – I can store all my pictures and music on it and watch TV. The browser is okay (I prefer Google’s Chrome given the choice) and I have got used to the virtual keyboard. I have started trying to swipe my monitor screen with my fingers which shows just how inquisitive the interface is. But I do not like it for reading books.

I am afraid that I have been spoiled by the Kindle which has a much easier screen for prolonged reading and I do like the slick integration with the Amazon store. So I end up using both gadgets.

But which device is better for viewing PDF files? The Kindle has a reasonable PDF viewer built-in while the IPad can preview them in Mail or there are several free and commercial apps to open them. The PDF file format encompasses both those worlds – you can use it for crisp black and white prose or colorful interactive multimedia. So again neither device can deliver the knockout punch and I will end up using both. Which do you think is best for PDF files?