Kovid just posted an announcement an the calibre blog. The latest stable build of calibre is out, and it now includes support for the iPad and the Samsung SNE 60K. There are also a couple minor tweaks and a lot of bug fixes.
Calibre is a free open source tool program that helps you use your ereader. It runs on Mac, Windows, and Linux, and can be used to convert files (to a format used by your device) and then transfer the ebooks to your ereader. You can create ebooks in almost every format available, and then read them on virtually all devices in existence. Find out more at calibre.