Monthly Archives: May 2011

AirPush: NOT Coming to an iPhone Near You

Posted on 2011-05-04 by jcs

Apple’s App Store gets a lot of grief for their locked down curation process—seemingly always with a reference to “walled gardens.” There’s a lot of truth in many of those complaints but only if you’re an iPhone developer; users aren’t … Continue reading →

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10,000 Steps

Posted on 2011-05-03 by jcs

About a year ago, I bought Gordon Bell and Jim Gemmell’s book Total Recall: How the E-Memory Revolution Will Change Everything. That was the first time I had ever read about the health benefits of taking at least 10,000 steps … Continue reading →

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crowdflow.net

Posted on 2011-05-02 by jcs

In an interesting coda to the Apple consolidated.db story that I blogged about here and here, some German hackers have started crowdflow.net, a Web site dedicated to generating an open source database of WiFi and Cell sites similar to that … Continue reading →

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FIFO Queues in Scheme and Lisp

Posted on 2011-05-01 by jcs

FIFO queues are a standard data structure that have many uses but they can be surprisingly difficult to get right. The standard implementation is an array with two pointers called front and rear. It’s the details of maintaining the pointers … Continue reading →

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