Techradar posted a story that French news source Mac4Ever site pointed out that references to Office products on Apple's mobile devices have started to appear within Microsoft's support pages
Among the products listed on several pages across various territories are Office Mobile for iPhone, Excel for iPad and PowerPoint for iPad. Due to the multitude of references, it's likely not just a blurry-eyed mistake that these products are at least in the works. The as-yet-unannounced products are listed alongside other support tags within Microsoft's official portals in France and the United States as well.References to Office Mobile for iOS appear on Microsoft support site