its App Store.
But the risk for Microsoft is that putting Office on the iPad takes away one of the key advantages of its own Surface and other Windows tablets, that already run Office natively.
Removing incentives to buy Windows tablets would be a blow to Microsoft's flagship Windows unit, which although less profitable than Office, is still key to the company's overall strategy.
Asked by one investor at the conference when he would be able to use Excel on his iPad, DelBene instead pointed the questioner toward Microsoft's own Surface RT and Surface Pro tablets and urged him to use Web-based versions of Office apps.
"I think we've done a great job on both the consumer side, particularly with the Web apps that we are building, and on the enterprise side as well," said DelBene.