The dog days of summer are a time when most of us check out, escape to the cabin/beach/abroad and recharge. Many of us also take time to reflect for the coming fall.

This is a good time to look at mobile. More than 40% of American companies have yet to incorporate mobile into their customer acquisition and retention efforts.

If you’re one of them, consider this your opportunity to explore mobile further.

Here are five mobile stories that you might of missed in June:

#1: Smartphones & Americans
#2: Think Behavior, Not Equipment
#3: Target’s App Accelerator
#4: Mobile the Walmart Way
#5: 20 Mobile Startups to Watch
Bonus: Mobile Email Presentation

#1: Smartphones & Americans

Pew Research is one of the few organizations who’ve tracked the impact of mobile across many areas of American society. So when they publish data on smartphone ownership trends, it’s always a must read for marketers and app developers: http://bit.ly/13dw2bC

#2: Think Behavior, Not Equipment

Those distracted by “new shiny thingies” often are left little from their investment in mobile. (Think of the hordes of dead apps created after executives got their first smartphone.)  Companies that start by mapping mobile to customer behaviors reap higher rewards. Here’s a great AdAge piece on how this thinking applies to mobile advertising: http://bit.ly/11ATPB8

#3: Target’s App Accelerator

Internal innovation is tough for most enterprise-level companies, and Target is no exception. That’s why the retailing giant struck a partnership with FastCompany’s Co.Labs to uncover app innovators. Judging from the mix of winning finalists, the effort just might prove successful: http://bit.ly/122x8ZB

#4: Mobile the Walmart Way

Forrester provides a great summary from the CTIA presentation of Gibu Thomas, Walmart’s Global Head of Mobile. Here’s a tasty tidbit: Walmart’s mobile-engaged shoppers spend 77% more each month and make four more trips per month: http://bit.ly/13dpB8j

#5: 20 Mobile Startups to Watch

Lack of resources and big barriers to entry often drives revolutions. And while the mobile innovations that we see stateside are often “cute” (think SnapChat), the real mobile revolution is happening where we least expect it. Mashable highlights 20 mobile startups worth tracking…from Africa: http://bit.ly/11AUouz

Bonus: Mobile Email Presentation

I spoke late last month to about two dozen nonprofit techies and communicators on mobile’s impact on email. Over 40% of all email is now viewed on mobile devices. If you’re not optimized for them, you’re losing eyeballs, conversions and subscribers. You can grab a PDF of the presentation here.