I just released an open source library and a sample application to make it easy for you to implement Twitter's new browserless xAuth authentication mechanism in your iPhone apps. You can download the source code or fork it from the XAuthTwitterEngine repository on Github.

Twitter started rolling out access to its new xAuth beta to developers over the weekend. As you may know, I'm a big fan of xAuth for mobile and desktop applications and as such I began implementing xAuth in Feathers right away.

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It’s exactly 20 years since Adobe unleashed Photoshop 1.0, and we celebrate by asking creative experts about their lives with the all-conquering image behemoth… So to celebrate its 20th birthday we got in touch with some of the top names in our big creative address book and asked them about their relationship with Photoshop.

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Within two hours of its release, my new iPhone app, Feathers, shot into the Top 25 in the Social Networking category in the App Store. Thank you to everyone who helped by tweeting, blogging, and – of course – buying the app.

If you haven't seen the short 1-minute screencast yet, what are you waiting for? Head over to feathersapp.com to watch it!

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I just released my new iPhone app, a labor of love called Feathers.

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Those of you following my tweets may have seen that I was rather frustrated this week at Twitter's oAuth policy with regard to desktop and mobile applications.

In a nutshell, Twitter requires any new applications that use the Twitter API to use oAuth for authorization if they want to display the source parameter in tweets. The source parameter is the little bit of text and the link to your app that appears at the bottom of tweets (e.g., via Tweetie). It constitutes a very important bit of organic marketing for Twitter apps.

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