Android and IOS just don't have really good tools to integrate with business.
I'm curious what you feel they are missing.
E-mail and calendaring, I prefer Android and iOS's tools to what is available from Microsoft, and that is connecting to a Microsoft's own Exchange servers on the back end. I imagine Android should be even better for businesses that have migrated to GMail for their back-end.
Remote wipe features for mobile devices are available on all platforms.
Document creation and perusal seems to be pretty inter-operable across platforms (although animations in presentation packages aren't always compatible across platforms).
With more and more business software migrating to web apps (accounting systems, customer management, ERP, etc), it seems that most business software will be more rather than less device-independent.