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Commuter Delays? iPhone Tube Refund App Pays for Itself

Londoners stuck in the tube now have a handy iPhone app to request ticket refunds.
Tube Refund, which costs $0.99, zaps off the request for riders whose journey is delayed over 15 minutes.
Depending on where you go and what time of day, a one-way tube ticket can cost from £1.80 to £4.00 ($2.75 – $6 circa) [...]

What’s Next For the iPad? A Tabletop iPad, According to Xerox PARC Circa 1991

Way back in 1991, just as Apple was transitioning from 68k to PowerPC chips, the braniacs at Xerox PARC were predicting it’s entire iPod, iPhone and iPad strategy. And next up for the iPad is a blackboard-sized device.
Nearly 20 years ago, just as personal desktop computers were taking off, researchers at Xerox started thinking about [...]

iPhone App Arms Users With Silent Panic Button

A new app called Silent Bodyguard features a panic button that sends an SOS distress signal with GPS coordinates to potential rescuers without alerting onlookers.
While the $3.99 app, available on iTunes, isn’t the first ICE (in case of emergency) app, this one is backed by Dr. Clint Van Zandt, former FBI chief hostage negotiator and criminal [...]

Early Apple Employees Auction Killer Collectibles

If there’s a good thing about the recession, it seems to be bringing some fine Apple memorabilia out of storerooms and closets.
Cliff and Dick Huston — ex-Apple engineers, for the record employees 27 and 25 — have decided to part with a treasure trove of Cupertino collectibles by auctioning them on eBay.

What’s on the block:

Apple [...]

Snow Leopard Gives 50% Performance Boost When Running Optimized Software

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Snow Leopard can give your Mac a 50% performance improvement when running optimized software, a developer has found.

Running a Mac Pro from 2007, programmer Christophe Ducommun compared Snow Leopard to Leopard while encoding and decoding video with his MovieGate software.

Ducommun is optimizing MovieGate to take advantage of two important new technologies in Snow Leopard: Grand Central Dispatch and OpenCL. While OpenCL allows powerful graphics processors to perform work for applications, Grand Central Dispatch takes advantage of multiple cores, distributing work among all the available cores.

Together, they apps a pretty big speed bump, according to MacBidouille, which published Ducommun’s results:

Snow Leopard
150 frame/s for encoding in MPEG-2
70% CPU load for decoding
130% CPU load for MPEG-2 encoding (ffmpeg)

Leopard
104 frame/s for encoding in MPEG-2
165% CPU load for decoding
100% CPU load for MPEG-2 encoding (ffmpeg)

Overall, the optimizations give an overall performance increase of about 50%. Ducommun’s Mac Pro is a 2.66 GHz Quad Core machine with a GeForce 8800 GT video card.

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About the author

Leander Kahney

Leander Kahney is the editor of Cult of Mac, and author of three books about technology culture: Inside Steve’s Brain, the New York Times bestseller about Steve Jobs; Cult of Mac; and Cult of iPod. Leander has written for Wired, MacWeek, Scientific American, and The Guardian in London. Follow Leander on Twitter @lkahney and Facebook.

Email the author | Read more posts by Leander Kahney.

One comment

    This looks and sounds pretty impressive. It would be interesting to see the same tests done on a present day Mac Pro.

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