The Librarian 1.5 blog, written by Norwegian librarian Thomas Brevik, has a few thoughts on what the iPad means to libraries. Here is a snippet:
How do we get content from the library to the iPad and similar devices, and can libraries use iBook or the AppStore as a delivery method? I think there will be several opportunities, and that binding libraries to a cooperation with Apple to get in through the iBook store probably will be difficult and even counterproductive. There are at least two avenues to go, either create an international LibraryBook app (open source of course), that will work on any operating system, or cooperate with the creators of any of the open source apps that are out there to deliver books through them. Both avenues has their pros- and cons, but I believe that to secure a future for the library brand it would be a good idea to develop a special library app.
Will the iPad and iPad like devices change the media habits of readers? Very likely. The iPod and iPhone has both changed a lot of behaviour and expectations from library users, and how other devices are viewed and used. I expect to see increasing demand for content on tablets from readers and probably pressure on the library to deliver certain types of content, i.e. ebooks.