HTML 5 solves a really important problem. Since it works on a range of devices, it means developers don't have to write apps for each operating system. Advisors will want to be aware of this trend as they look for apps they and their clients will be able to use on a range of different devices.
This post on PC World is one of the rare few that explains why HTML 5 will become a big deal over the next couple of years. This is a fundamental issue that's not real sexy but good for advisors to understand.
Advisors dazzled by iPhone or Android Apps who want to share data with clients are likely to find developers using HTML 5 in best position for enabling mobile access across a range of operating systems and devices.