An anonymous reader writes "A Microsoft exec has turned attack dog, lashing out at Apple's iPhone by saying the device isn't good for business. Why? Because the iPhone is 'a closed device that you cannot install applications on.' Specifically, he's talking about Microsoft Office. 'While the entry of the iPhone (with its cut-down version of Mac OS X) into this market offers new options for consumers, Sorenson believes user familiarity with the Windows Mobile interface — and the ease with which companies can buy and develop applications for the platform — will sustain its increasing popularity and help keep the iPhone out of the lucrative corporate market.'"