When clicking a Quick Look window’s new “Open with Preview” button in its top toolbar, that window morphs into the new Preview window that opens. Classy! The same happens with RTF files and, it seems, just about any files Preview supports.
If you connect to a wifi network created by your iPhone, Mac OS X Lion shows the Personal Hotspot icon (similar to an iPad) in the menu bar, instead of the regular wifi indicator.
When using Safari in Lion’s Full-Screen mode, you can grab the edges of the browser and drag inward to reduce the width, making fluid websites easier to read on wide monitors, while keeping a nice clutter free view.
OS X Lion shows a live preview when using Quicklook on .webloc files, which are the bookmark files that you get when you drag URLs to the Finder or your Desktop.
If you connect (from a machine running Lion) to a non-Lion machine using Screen Sharing, your scrollbar scrolling preferences are preserved. I.e. If you use the new iOS-style scrolling in Lion, scrollbars on the (non-Lion) remote machine use iOS-style scrolling as well.
If you use the album artwork screensaver, you can mouse over an album cover and a “play” icon will appear. Click it and a song from that album will play.
Previously you had to download a Quick Look plugin, now it works out of the box.
Reeder, a stylish Google Reader client for Mac, makes it easy to quickly “like” Tumblr posts and get back to skimming articles.
While viewing an article in Reeder’s Classic view (with a reading pane on the right), open the Tumblr page by either pressing ’v’ on the keyboard, clicking the title of the article, or performing a three finger swipe to the right on a multitouch trackpad.
The article will load in Reeder’s built-in browser as if you visited it in a stand-alone browser. Clicking the heart icon on a Tumblr post will “like” the post, close the website, and bring you back to the article view in Reeder.
Most know that Twitter for Mac’s menu bar icon Illuminates when you have unread mentions. What you may not know is that the menubar icon gets brighter if you have unread DMs.
You can quickly sleep any Mac sporting an IR receiver (the MacBook Air, for example, does not have one) by holding down the Play/Pause button on an Apple Remote.