There were a couple of other items made during the WWDC keynote that went a bit under the radar.
First, iTunes U content (both public and private) are now directly accessible via the iTunes.app on both iPhone (wi-fi & cell) and iPod Touch (wi-fi). Private content will support authentication as well.
Secondly, (coming soon), an brand new Mobile Me iDisk app for iPhone & iPod Touch! Allows access to documents stored on your iDisk. Also allows you to share your iDisk files with other users (emails them a download link to large files). For full descriptions to new Mobile Me features, please see here <http://www.apple.com/mobileme/whats-new/>
Finally, major announcements to Snow Leopard Server. The updated features are listed here <http://www.apple.com/server/macosx/features/>
Updated features (since Snow Leopard Server was last announced):
1. iCal Server2
New web interface
Push notifications of new meeting invitations
Secure calendar access for iPhone over the air; no syncing required
Interoperability via; CalDAV, iMIP & iTIP
No Client-access licenses, unlimited users by default
Source code available via macosforge.org
2. Podcast Producer 2
MUCH easier setup via Server Admin, new defaults for either single server setup or cluster
Podcast Capture.app now supports dual-source video input (ei: screen running presentation & video of speaker). Those will be composited together.
Ability to convert a presentation or other documents into a podcast video file
Web podcast capture feature to remotely capture audo and/or video into Podcast Producer system
Brand new Podcast Composer application to created automated workflows
New archiving of podcast content to 'Podcast Library' for long-term storage
3. Wiki Server 2
'Quick Look' for uploaded documents (just like in Leopard client). Review a file before download.
Support for Safari on iPhone/iPod Touch; no server re-configuration necessary
4. Mobile Access Server
Secure access to server resources without the need for VPN through a firewall (uses TLS)
Integrates into pre-existing directory service infrastructure for single-sign on
No Client-access licenses, unlimited users by default
5. iChat Server
New support for Active Directory integration, plus single-sign on
Persistent chat rooms
6. Mail Server
New back-end mail engine
Support for vacation messages and server-side rules
Push email
7. Web Server
Built on Apache 2.2
All components for 'Web 2.0' deployments built-in (see above link for full list)
Full support for HTTP live video streaming via QuickTime X
8. Network Disk Imaging
Support for; Netboot, NetInstall & *new* NetRestore
9. iPhone & iPod Touch Configuration Server
Create configuration profiles that can be distributed via Snow Leopard Server to your organization/department