For those of you twittering on an iPhone or iPod Touch, you might be interested to learn that there’s a new application you can use for speeding up relies, DMs, RTs, and more, it’s called TweetStack.

TweetStack also lets you import your TweetDeck settings, you can see how to do that here.

According to Mashable, the TweetStack can do other cool stuff like geo-tagging your photos:

TweetStack lacks the beautiful and sleek design of Tweetie, but once you notice that you can create stacks (ie. groups) based on TwitPic (TwitPic reviews) tags, your current location, Twitter friends, and any search term that strikes your fancy, we think you’ll be impressed. Now throw in the fact that tapping a user’s avatar gives you the option to view that user’s profile, create a group, or add the user to an existing group. Oh, and tapping a tweet itself will let you send a reply or dm, retweet it, or add it as a favorite.

via mashable