Cooling down a MacBook Pro

My 15″ MacBook Pro gets very very hot. So hot that it’s actually uncomfortable to have it sat on your lap. So I was very happy to find out about smcFanControl, which allows you to manually set the fan speed of your MacBook or MacBook Pro. I found that smcFanControl reported a temperature of over 60 degrees celsius […]

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The Conservative iPhone app and the DPA

I’m an iPhone app developer. I’m interested in new apps that do interesting things. I also have an interest in data privacy. So when I heard that the Conservative Party had launched an app with a canvassing feature, I thought I should try it out. Call A Friend Here’s how it works. Imagine that a […]

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What’s (not) wrong with the iPad

Lots of suggested iPad downsides on the Internet this morning. Thought I’d tackle a few. It doesn’t have a camera It’s 9.5″ by 7.5″ wide, and 0.5″ thick. You want to try taking a picture with something that shape? Besides, you’ve got a camera-shaped iPhone in your pocket. It doesn’t make phone calls It’s 9.5″ by 7.5″ […]

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Empty XHTML tags and Internet Explorer DOM traversal

Here’s the problem: HTML and XHTML pages containing empty elements with no end tag such as <span /> break JavaScript DOM traversal methods in Internet Explorer 6, 7 and 8, resulting in nodes after such an element showing up in more than one node’s childNodes collection. Consider the following XHTML document: <?xml version=”1.0″ encoding=”UTF-8″?> <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML […]

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Top Grossing Apps in the iTunes App Store

One of the more interesting additions to the updated iTunes 9 Store is a new “Top Grossing Apps” view.  This is displayed bottom right on the main App Store screen in iTunes, and has also been added to the Mobile App Store in iPhone OS 3.1, under the Top 25 tab. As a developer, this view is […]

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How to detect if an iPhone OS device...

I’ve struggled to find a way to deduce if an iPhone OS device has the ability to make phone calls or not. There is a way to do so in iPhone OS 3.0, but I want to compile my code against the OS 2.0 SDK to enable it to run on as many devices as […]

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iPhone Ad Hoc distribution for application beta testing

Apple’s Ad Hoc distribution process is a godsend for iPhone beta-testing, but a right pain to use in practice.  I’ve tried several different approaches for creating and managing Ad Hoc testing; this article describes the one I now use for my National Rail Enquiries for iPhone application. (A note before we get started: This article assumes some pre-knowledge […]

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QuickTime X plays movies full screen for free

According to the latest reports from WWDC, QuickTime X finally brings the one feature that’s been missing for years: full-screen playback for non-Pro users.  It’s long been a bugbear of QuickTime users and developers that you have to buy QuickTime Pro to play movies at full screen.  It looks as though QuickTime X (currently being […]

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Core Location extensions for bearing and distance

As part of a recent iPhone project, I needed to find a point at a certain distance from one location in the direction of a second location.  I found the formulas I needed on Movable Type Ltd’s scripts page, and converted these into the appropriate Obj-C code to run on an iPhone using the iPhone SDK. I’m posting […]

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