Rob GriffithsSenior Contributor, Macworld

Former Macworld Senior Editor Rob Griffiths founded Mac OS X Hints. He's now master of ceremonies at Many Tricks Software.

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Review: Duet Display brings fast response to the iPad-as-external-monitor game

The $15 iOS app, Duet Display, allows you to use your iPad as an external display. Thanks to its wire requirement, that display is actually responsive.

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The paranoid person's guide to a complete Mac backup

You think you have a complete data backup plan? Then you haven't seen the lengths Rob Griffiths goes to to secure his data.

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Microsoft Excel for iOS review: Create and edit spreadsheets on any device, at no cost

If you're looking for a powerful spreadsheet app for iOS that makes it seamless to work between a Mac, a Windows machine, and any number of iOS or Windows Phone devices, Excel for iOS is for you.

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Carbon Copy Cloner 4 brings increased usability to trusted utility

Carbon Copy Cloner, a venerable cloning and backup utility, gains new features and an improved interface.

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The pros and cons of adding a 4K display to your Mac

Monitors that stretch the width of your desk are so last year. Rob Griffiths decided he wanted to try something new: a 4K high-density screen.

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Life after death: Resuscitating a drowned iPhone 5

Rob Griffiths's iPhone took a trip to Davy Jones's locker and lived to tell the tale. Witness the miraculous story of a resurrected iPhone.

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Permanent 2 review: updated iPad spreadsheet gets more useful, less quirky

The first version of the Permanent was, for better and worse, unlike any other iPad spreadsheet we'd ever used. The update loses some of the quirks, but gains in utility.

Nine things everyone should know how to do with a spreadsheet

Whether you prefer Excel, Numbers, or Google Docs, here's what you, the savvy spreadsheet user, should know how to do.

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Parallels Access 2 review: Control your Mac (or PC) from your iPad or iPhone

Parallels Access 2 lets you view and control your Mac or Windows computer from any iOS device. It's a nice upgrade over the original version, though its subscription-based pricing makes it less appealing than some competitors.

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MacBook Pro vs. MacBook Air: how I made the choice

Rob Griffiths wanted to replace his two aging laptops with one new one. But which Mac laptop to choose: the Air or the Pro? Here's how he made his decision.

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Office 365: To subscribe or not to subscribe

Can you get by without paying Microsoft's subscription fee? In some situations, you can.

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Excel for iPad review: The best spreadsheet app for the iPad

Microsoft put some serious thought into the iPad version of its spreadsheet, and it shows.

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With Frozen DVD, Disney shows how digital is done right

UltraViolet, take note: the DVD version of Disney's hit offers multiple digital options and a painless download process.

on techhive.com

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How I manage spam on my mobile devices

Taking care of spam wasn't a problem on his home Mac. But Rob Griffiths wanted a way to deal with it from his iPhone or laptop, too. Here's the system he devised.

Numbers 2.0 for iOS review: Screen size does matter with Apple's spreadsheet app

Apple's new spreadsheet app for the iPad and iPhone is great if you rely on the built-in templates or you want to perform basic tasks. However, the screen real estate makes Numbers difficult to use for complex spreadsheets.