Twitter has released TweetDeck 2.1, an update that adds a smattering of features to the company’s column-based client. The new release adds support for photo and player cards (the latter of which can play video and audio), plus it enables you to edit and refine search columns using the new column options (click the magnifying glass icon at the top of a column). It also adds the capability to type “n” to start a new tweet and press Command-Enter to send a tweet. Also included are fixes for Retina display support and profiles that didn’t load under certain circumstances. (Free, 1.4 MB)
Mac OS X Services in Snow Leopard
Mac OS X Services let one application supply its powers to another; for example, a Grab service helps TextEdit paste a screenshot into a document. Most users either don't know that Services exist, because they're in an obscure hierarchical menu (ApplicationName > Services), or they mostly don't use them because there are so many of them.
Snow Leopard makes it easier for the uninitiated to utilize this feature; only services appropriate to the current context appear. And in addition to the hierarchical menu, services are discoverable as custom contextual menu items - Control-click in a TextEdit document to access the Grab service, for instance.
In addition, the revamped Keyboard preference pane lets you manage services for the first time ever. You can enable and disable them, and even change their keyboard shortcuts.