Boosting the Mac version of its podcatcher app with AirPlay support, Jamawkinaw Enterprises has released Downcast 1.0.3 with a number of new features and improvements. The update adds a preference to prevent screen dimming while playing videos, hides the cursor during video playback, makes significant improvements in iCloud syncing and stability, ensures the progress indicator is displayed when importing files, and makes several improvements to VoiceOver. It also fixes a bug that caused episodes to be marked for streaming instead of being downloaded and an issue that prevented the played/unplayed status from syncing correctly. ($9.99 new from the Mac App Store, free update, 6.1 MB, release notes)
Go Back and Forth Fast in Preview
If you're reading a PDF in Apple's Preview software, and you follow a bookmark or an internal link to move around within the PDF, you can quickly return to where you were by pressing the keyboard shortcut Command-[ (that's Command-Left Bracket). Or, you can choose Go > Back.
The command works iteratively, so you can go back to just the previously viewed page or if you issue the command again, to the page before that, and so on. There's also an equivalent Go > Forward (Command-]).