TweetDeck retweet
TweetDeck now doubles up profile pics on retweets to give original poster\'s credit. (Credit: Screenshot by Jessica Dolcourt/CNET)

Seesmic's Twitter reader app for Mac and Windows is looking at some serious renewed competition from TweetDeck.

The newly updated TweetDeck 0.32 (and AIR app for Windows and Mac,) packs in a host of changes that should make the desktop app more attractive to power tweeters. Chief among these is new behavior for retweeting, when users share a contact's tweet with their own list of followers in just a click. TweetDeck supports two formats, the "new style" that spits out an identical post and displays both your photo and that of the original tweeter, and the "original" style that lets you edit before you post the duplicated message. We like that TweetDeck can remember your preference, or that you can do nothing and choose fresh each time.

Geolocation tweets get mapped

The new TweetDeck also incorporates Twitter Lists for the first time, a grouping feature that Twitter launched about a month ago. Just as you can manage individuals on TweetDeck, you can also manage lists and omit people on them that you don't directly follow. You're able to create new lists from scratch or from a list you already have.

In addition, tweets that include geolocation information now pop up with a yellow pin at the bottom of the message. You can click the pin to expand an embedded map. We haven't seen any of these show up in our lists yet, but the concept of convenience is similar to what Yahoo Messenger already does when it embeds photos and videos into chat windows. We hope that's next here, too.

Adding and expanding on Twitter features isn't TweetDeck's only move. The update also pulls the LinkedIn social network onboard, which means you can now read status streams from LinkedIn, Facebook, and MySpace in TweetDeck's column view, in addition to tracking streams from various Twitter accounts.

The version 0.32 update also makes its mark with a reorganized Add Column screen that replaces previous menu items with redesigned navigation for maintaining your Tweeting dashboard. The new TweetDeck includes numerous bug fixes as well; here's the changelog for more details.

Jessica Dolcourt reviews smartphones and cell phones, covers handset news, and pens the monthly column Smartphones Unlocked. A senior editor, she started at CNET in 2006 and spent four years reviewing mobile and desktop software before taking on devices.