Fresh from the oven: Qt 4.5.1, Qt Creator 1.1, new SDK.
Details on what has changed can be examined in the changes file. Now that the release is out, the QtWebKit team is busy again fixing bugs and backporting important fixes for the next patch release (4.5.2). Expect to see more extensive changes there. Few QtWebkit-related examples which I have written are also being cleaned-up and imported as new Qt examples, as we speak.