Twitter Clients for the iPhone

Hahlo – Nice looking Twitter client with simple navigational menu system.

iTwtr – Download tweets to iPhone for viewing even when not connected to wifi, 3G or even Edge.

PocketTweets – Slick client for the iPhone

Twitteriffic – One of the most popular clients for Twitter on the iPhone.

TwitterFon – My personal favorite Twitter client for the iPhone because of simple navigation buttons that allow you to jump from one area to another.

Niche Twitter Apps for the iPhone

AirMe - Send photos from your iPhone to Twitter with this free app which includes a Twitter client.

iMapMyRun – Lots of features for runners including Twitter access.

Jott – Record voice messages from your mobile device and post links to it on Twitter.

Locly – Location tracker with Twitter integration that shows tweets in your area.

Loopt – Another location tracker with Twitter connection but also other services like Yelp.

Twinkle – Location based Twitter app that utilizes the GPS feature.

Twitfire – Upload photos to twitter and more.

Twitterlator – Manage multiple twitter accounts.

Twittervision – A world view of tweets from around the globe in real-time.

Twootball – Track all football scores and teams via this Twitter app.

T-Mobile G1

TwidRoid – Probably the most popular full-featured Twitter client for the Android G1 now with GPS support.

Twitli – Simple client for Android devices that translates languages.

TwitterDroid – Not to be confused with TwidRoid, TwitterDroid was created as a clone of the popular Twitterific client. Not as easy to install as all of the other apps because it requires some manual sets.

BlackBerry

Blackbird – Twitter client for the BlackBerry. Here’s the over-the-air installation file.

TinyTwitter – Actually works not just on BlackBerries but also Windows Mobile devices and any Java-enabled mobile device.

TwitterBerry – The most popular Twitter client for CrackBerries. I used this one for a while on different BlackBerry models.

Windows Mobile

ceTwit – Windows Mobile client for Twitter written in c# and .net framework.

GPSTwit – Adds location tracking to Twitter on Windows Mobile devices (iPhone too)

PocketTwit – Free client (donations accepted) that works with Twitter and Identi.ca accounts.

Twitter2Go – Very basic Twitter app with limited features.

TwitToday – Small app for Windows Mobile devices with standard Twitter features.

Twitter Answers – The Twitter version of Yahoo answers. Ask and answer questions with this application.

Quakk – Open source Twitter client, which means not as quick and easy to install and update.

Smartphones

twitxr – Upload photos to Twitter (Native clients available for iPhone, WinMo, Nokia/Motorolla)

Moblf - runs on many platforms and connects to Twitter and Friendfeed

MobyPicture – Connects to Twitter, Flickr and other networks on different mobile platforms.

TreoTwit – Twitter client for the Treo and its Palm OS.

Twibble – Twitter for the Nokia N95 with GPS support.

Non-Smartphones

JibJib – Tiny Twitter client for non-smartphones for basic functions

jTwitter – Java client for Twitter that will work on many different mobile devices including non-smartphones

psyhzzz – Extremely tiny twitter updater that works on most non-smartphones

TinyTwitter – Works on many Java enabled devices as well as Windows Mobile phones.

Twim – Java client that will work on most non-smartphones.

iPhone GUI PSD (Photoshop file)

teehan+lax – an interactive user interface design agency – has put together a solid Photoshop file (PSD) containing all of the main iPhone UI widgets. It’s a whopping 6 megabytes and includes everything from scrolling lists to the keyboard, labels, browser bars, play controls, phone keypad, and more.

This file is awesome if you want to put together some mock designs for your app. Even if you’re not an iPhone app developer yourself, you could use this to spec out your app before passing it to a developer.. giving you more control over the result.

320480.com has an alternative iPhone interface PSD file for download, if you want some variety.

iPhone GUI stencil for Omnigraffle

Patrick Crowley has put together the “ultimate stencil” for people designing iPhone interfaces. It’s not for Photoshop like those above, but for Omnigraffle – a popular layout / mocking app on OS X.

Favorites UI Design Walkthrough

Favorites is an iPhone application by Matt Legend Gemmell that gives you “virtual speed-dial” for calls, SMS and e-mail. He’s put together an article where he details how to designed the user interface for the application.

You’ll want a mug of coffee to hand before reading this article, it’s really, really long, but it’s also really good and packed full of screenshots and examples. Favorites is a very polished app and Matt spills the beans on how he got it that way (of course, some people in the comments section disagree, but that’s also worth reading). An essential read unless you’re dead confident about getting the UI just right in your own apps.

iPhone-Likeness

Legendary Mac blogger John Gruber has written an essay defining how iPhone applications should be as “iPhone-like” as possible. He brings up some quick and effective tips and tactics you can use to organize your app.

Edward Tufte on iPhone interface design

Edward Tufte (pronounced “tufty”) is almost considered a god in the field of information design and presentation. Quite early on in the iPhone’s life, he put together an interesting video with some thoughts on iPhone interface design. Edward Tufte is well worth paying attention to, because even though his ideas are radical, they work and they’re ultimately quite simple.