Rogue Amoeba has released Airfoil 4.5.5, a minor update to its popular remote audio transmission app. The main focus of the new version is the correction of several issues related to Mac OS X 10.7 Lion, one of which is a severe crash. In addition, Airfoil now sports improved compatibility with Google Talk, Muse Controllers, and Radium (although the latter requires an as-yet-unreleased version of the Internet radio player app). ($25 new, free update, 11.3 MB, release notes)
Turn Off Filename Extension Warning
In Leopard, Apple fixed an annoying aspect of working with the Finder in Tiger. Previously, if you changed a file's extension, the Finder prompted for confirmation. But since no one has ever accidentally changed a filename extension, Apple thankfully added an option to turn that warning off in the Leopard Finder's preferences. Choose Finder > Preferences, and in the Advanced screen, deselect Show Warning Before Changing an Extension.
Check out the Take Control ebooks that expand on the topic in this article:
Set up short abbreviations which expand to larger bits of text,
such as “Tx” for “TextExpander”. With the new custom keyboard,
you can expand abbreviations in any app, including Safari and