The overview was written and delivered in February and a synopsis was posted
here in early March.
In short, webOS is too open without the requisite lockdown capabilities and doesn't have the enterprise management features that are so desperately needed to maintain control and security. At the time, encryption was not automatic, the VPN support was limited, and there was no way to prevent developer access. The hooks are so limited that mobility management platforms can do little more than set e-mail configurations and wipe the device, if they support it at all.
Apple has largely done it right, providing the necessary hooks for us to control just about everything. With at least one product, we can get not only the call logs but also the content of every SMS and MMS message sent or received within seconds of the transmission.
RIM is a close second, providing depth of control but it has the drawback of being a very closed and difficult to master platform for developers.
Enterprises ideally will be able to push VPN configurations, automate app deployment, restrict access to unwanted content, and generally do a whole lot of things remotely up to and including wiping the phone without the user's permission. So far, webOS provides so little that, unless we're content to use it for just e-mail and don't worry about anything else, we can't go with it -- and we need much more than just e-mail.
I am hopeful that HP has recognized this and is providing management functionality in imminent releases.