Mobile learning and mobile technologies have garnered a significant amount of attention in K-12. As we define it, mobile learning is about 24/7, all-the-time, everywhere learning that is supported by mobile technologies. And, as we argue that mobile learning is increasingly a dominant form of learning, we look to better understand the roadblocks that are holding back its adoption in K-12. To that end, then, we look back in time and we look forward in time to identify the issues involved in mobile learning adoption in K-12. Rooted then in that analysis, we are optimistic that mobile learning can and will be adopted in K-12 over the next 5 years.