Virgin Mobile

Is there no such thing as a cheap, prepaid data SIM in the USA?

October 2, 2012 by Stephen 13 Comments

It’s hard to believe that a true prepaid mobile data SIM doesn’t exist in the USA, but it’s true. A GoPhone, H2O, or Net10 SIM isn’t a bad idea for your smartphone, but it’s not exactly cheap. The best option for those needing just mobile data is a local Virgin Mobile hotspot or a brand new Android phone or iPad!

Hands-On Review: The Eye-Fi Connect X2 Card

July 4, 2011 by Stephen 3 Comments

I simply cannot recommend any Eye-Fi card, even the fancy new X2 line, to average camera users. Even enthusiasts like me would be wise to curb their enthusiasm. Most features barely work in practice, and the device frequently failed to perform.

Building a Combination 3G/4G/Wired Wi-Fi Network

June 28, 2011 by Stephen 6 Comments

The Tech Field Day events I run are hotspots of social media, but it has been hard building an Internet presence to keep up. Constantly on the move, I need a flexible network with scalability and failover (and fail-back) between 3G/4G and wired Internet. My latest design relies on CradlePoint’s MBR1200 “Failover Router”, which can load-balance across multiple 3G and 4G data cards.

Get a Cradlepoint PHS300 Portable 3G WiFi Router For Just $99!

December 14, 2010 by Stephen Leave a Comment

I love my Cradlepoint PHS300 router. It’s been a constant companion for me for two years, providing Internet access for me and my friends at just about every conference I attend (and organize!) It’s a battery-powered box with a USB port and WiFi radio. Attach almost any 3G or 4G modem or smartphone (other than the iPhone) and you’re online and sharing. And it’s better than a MiFi: You can customize the experience, it’s faster (in my testing), and it scales to support way more users.

GPS Time Rollover Failures Keep Happening (But They’re Almost Done)

This is week “1111111111” in the GPS system. Tomorrow morning it will roll over to week “0000000000”. How well will various systems handle this change? Not well, judging by what we’ve seen so far!

Ranting and Raving About the 2018 iPad Pro

I remain enthusiastic about the iPad Pro, despite getting a scratched screen and my concerns about durability. It’s a worthy successor to the original and offers enough improvements that I’d recommend the upgrade for just about anyone who uses their iPad for serious work. It’s still not yet a laptop replacement, but this is due more to a lack of desktop-class software for iOS than anything in Apple’s control.

Regarding My Symbolic Links and Good Reads

April 16, 2015

I’ve been told that my shares drive traffic to the blogs I read. I’m thrilled that I can share great writing with you in this way, and I hope you find it valuable! But just in case you don’t, I hope you’ll take advantage of the fact that I filter these posts for you into “Symbolic Links” and “Good Reads” so you’ll find it easier to ignore them.

Sony QX100 Lens Camera: Ruined by a Flaky iOS App

October 7, 2013

I was thrilled by the possibilities of adding a professional-quality camera sensor and lens to my iPhone, so I immediately pre-ordered Sony’s DSC-QX100 “lens camera”. It held so much promise, not just as a real innovation but also as a major productivity tool. That’s why I’m angry to write this, a scathing review of the horrid software that ruins the QX10 and QX100 experience. Do not buy this device.

How Will Cisco Recover From The Consumer Strategy Blunder?

January 2, 2013

Cisco made a massive strategic blunder in the last decade, aggressively moving into consumer devices rather than focusing on their core enterprise and service provider markets. It seems that Cisco is now in the process of rectifying this mistake, but charting a path to growth is an entirely different matter!

The Terrifying True Story Of Virtual Machine Mobility

December 22, 2011

Virtualization of server, network, and storage services illuminates the link between physical resources and functional applications. A running virtual machine can instantly move from one server, network adapter, HBA, or LUN to another. And when it happens, traditional components have no idea how to react.

A Fairy Tale of Two Storage Protocols

September 23, 2014

It’s clear how this fairy tale ends. So many companies are using “S3 plus” as their standard interface, and even inside their solutions, that it’s safe to say it’s won the cloud storage API battle. But S3 isn’t a finalized spec – the industry will extend and improve it over the coming years. Soon we’ll have a cloud storage standard based on S3, just like we have a LAN file services standard based on CIFS.

Preserving Your Credibility Is Your Prime Directive

June 4, 2012

I hope this post isn’t too “out in left field” but I thought it needed to be said. Independent social media has evolved into a powerful mechanism to influence belief, behavior, and (yes) buying. I take my little dollop of influence very seriously, and feel an incredible responsibility to live up to the trust placed in me by others. I will try every day not to let you all down!

Co-Processors, GPGPU, and Heterogeneous Computing

June 26, 2017

I’ve been thinking a lot lately about microprocessors, from the many-core CPUs that AMD and Intel introduced recently to the massively scalable GPGPU processing that’s taking machine learning by storm. After years of consolidation on commodity x86 CPUs, it seems that the computing paradigm is turning again to specialized offload processors. This trend towards heterogeneous computing will change the face of hardware, from mobile devices to the datacenter.

My Core i7 Macintosh SE

May 25, 2017

I recently built the biggest, clunkiest iPad mini case ever, transforming my old Macintosh SE case into an iPad stand. But what to do with that empty case? Why, it’s the perfect size for a custom Mini-ITX PC! Introducing my liquid-cooled Core i7 monster Mac SE!