Microsoft places a heavy bet on Surface
The full Windows 8 version of this tablet will succeed, enterprise integration is the key. Features such as the ability to run applications that are Internet Explorer (a large number at many corporations) dependent will be a huge factor for adoption. Applying group policies and preferences to these devices, printing to windows print servers, full MS Office capability including Outlook, and access to file shares are some of the features that will convince executives and average corporate users that this is the device to have.
The integration of IOS devices into the enterprise is challenging for most of the features listed. Apple has a fine consumer device that works great, but is challenged to fit into the corporate environment securely without large expenditures on mobile device management software.