"It's a very valuable challenge to enterprises to deliver a mobile app that has the same usability as a consumer app," Lanzi says. "We end up spending almost as much time on user experience as we do on the actual coding and testing of the app."

Companies embracing iPads will no doubt have a few app failures. Genentech had an iOS app called Coming Together that didn't quite live up to its name. It was an internal RSS aggregator that never achieved user adoption, and so Lanzi retired the app.

Genentech has had a half-dozen failed apps; Lanzi's rule of thumb is to retire apps that fall below a few dozen users. That's not a bad track record considering all the enterprise apps Lanzi puts out.

One of his tricks is to gather user feedback just like Apple's App Store and use this knowledge to improve app development. Reviews are paramount to the App Store's success. Apple aficionados know that they can quickly star-rate an app and write up a comment. Employees also want to provide feedback for enterprise apps in the same way.

"There's a user expectation that the same App Store experience follow through to the enterprise app," Lanzi says.