Andy Hargreaves of Pacific Crest Securities takes an opposing stance, saying that the iPhone should attract new developers and " will likely be the first Apple device for millions of corporate users, and positive impressions could drive stronger demand for Macs over time." Hargreaves believes that the SDK and ActiveSync support will help drive over 5 million handset sales to corporate customers. While Sacconaghi thinks the existing barriers regarding BlackBerry devices functioning on an Exchange server will still be present, Hargreaves says that the iPhone could create a halo effect in the corporate industry, similar to that of the iPod and the home market. Hargreaves estimates that Apple holds less than 2-percent of the worldwide PC market, and submits that the Mac platform could see "meaningful growth" throughout the 2008 fiscal year. Each 1-percent gain would entitle Apple to 25¢ per share, according to Hargreaves.