The CIO (US) story, "Security Shootout: PlayBook, iPad, Android," posted June 10, has been changed to correct the number of devices that BoxTone -- a mobile device management vendor -- manages, and also to clarify the company's opinion about security on various devices. The fifth and 10th paragraphs of the article have been changed.

The fifth paragraph now reads:

BoxTone, which manages 850,000 smartphones and tablets in the enterprise, sees tablets gaining ground in the enterprise in three main markets: healthcare, retail and field services. Sixteen months ago tablets weren't something BoxTone really dealt with, "but by the end of this year they'll account for half of our business," says Brian Reed, vice president of products at BoxTone.

The 10th paragraph now reads:

In terms of security, BoxTone contends that the iPad is enterprise-ready because it covers security's essentials.