Every week, I share the most interesting and useful tech articles that I’ve found over the past week. This week’s top articles focus on strategic CIO priorities for 2013, the shocking cost of mobile app development, and more. I hope you find them useful:

25% of enterprises spend over $100,000 to build a mobile app
I knew the native mobile app approach was expensive, but…wow! The really scary part about this story: What happens if a new mobile platform emerges or their platform of choice disappears in the next few years? Seems like a big investment for such a volatile market. It’s one reason I push the mobile web app approach. It leaves you with cross-platform mobile apps that work on any device, both now and in the future. Also, they’re far cheaper.

Dear CIO, are you tackling the top 10 strategic issues for 2013?
Modern CIOs are stuck in a tough spot: They must somehow manage their existing systems, while moving the company forward technologically. If you’re a CIO, this article provides a great overview on this year’s strategic issues.

Enterprises cite legacy IT as cloud impediment
We hear all about the advantages of the cloud, but what keeps businesses from actually making the switch? According to this article, their legacy systems provide the biggest barrier. Side note: If you’re tied to an outdated system, but still want modern features, here’s something that will help.

Forrester: $2.1 Trillion Will Go Into IT Spend In 2013; Apps And The U.S. Lead The Charge
Forrester just released their annual look at the state of IT spending, with software and applications leading the pack. Overall, it’s some pretty interesting data–especially the fact that companies plan on spending $21.1 billion on tablets this year. If you’re still wondering whether or not this whole “mobile craze” will catch on with business…I’d say that answers your question.