Apple has posted a list of Guided Tours videos for the iPad to give us something to do before the 3rd. Here’s a few new tidbits was revealed (noted by engadget):

iBooks has a built-in dictionary feature, search feature and brightness control right within the app.

With the bigger display, the UI accommodates “windows” and “menu bars”.

What new tidbits or changes might we dig up this time? We’ll have more information on Beta 3 as details roll in.

From the first 2 beta updates:

Closer look at iPad Safari (Video)

iPad Emulator Reveals File Sharing, YouTube HTML5 and more

Update: Apple just pulled Beta 3 because of a major bug.

Update #2: iPad Photos App added to Beta 3.

Update #3: Camera Tab found in Photos App.