Both services have undergone dramatic changes since we first launched them, most as a result of suggestions from consumers and users and we continue to monitor user comments so as to enable us to continue to improve the functions of the sites and to add features requested by users.

CNN: Always innovating, always listening to the market

Now, Yasuda says, companies are learning to evaluate all their functions and operations based on how they add to shareholder value.

CNN: THE NEW JAPAN INC.

Westfield said it eventually wants to add product-search and you-are-here locator functions.

WSJ: Malls Test Apps to Aid Shoppers

The first step in designing a great mobile enterprise app is to provide a small subset of task-oriented functions, and I believe that enterprise developers should start by designing micro apps and then add functionality as needed.

FORBES: 6 Ingredients For Great Mobile Applications From Apple

But the more functions cell phone manufacturers add, the greater the amount of power the phones use and the less practical running them on lithium batteries becomes -- so the race to find a viable alternative is on.

CNN: Search for better phone power