SP1 has now been officially released and supported!!
Read all about it here: http://www.microsoft.com/systemcenter/mobile
All the resource kits tools have also been refreshed, see the downloads below!

Key Features and Benefits:

Mobile Device Manager 2008 enables efficient control of Windows Mobile 6.1 devices by providing reliable, low-cost, and consistent manageability, easy integration with your existing Microsoft infrastructure, and secure access to the corporate network.

• Multiple Instance: Supports deployments where multiple points of control are required within a single forest.
• PIN Reset: Allows users to request a PIN reset on their device. (details here: http://technet.microsoft.com/en-us/library/dd252841.aspx)
• Enrollment Auto Discovery: Facilitates easier self-service enrollments.
• Runs with Windows Server 2008: Provides support for Windows Server 2008 Active Directory functional level.
• Performance/Scalability: Increased system capacity.
• Virtualization: Provides Hyper-V testing support using Windows Server 2003 as a guest OS.

Information:
Get the evaluation here:
http://technet.microsoft.com/en-us/evalcenter/cc339027.aspx 
Great must-read “What’s New” overview:
http://technet.microsoft.com/en-us/library/dd261938.aspx 
Updated SP1 TechNet documentation appears to be slowly published here:
http://technet.microsoft.com/en-us/library/dd261783.aspx

Downloads:
System Center Mobile Device Manager 2008 SP1 Evaluation Edition – 120 day
System Center Mobile Device Manager (MDM) 2008 SP1 Evaluation Edition is a system that enables Windows Mobile devices to become managed and authenticated members of the IT infrastructure of an organization.

System Center Mobile Device Manager 2008 SP1 MSDN
System Center Mobile Device Manager (MDM) 2008 SP1 MSDN is a system that enables Windows Mobile devices to become managed and authenticated members of the IT infrastructure of an organization.

Mobile Device Manager 2008 SP1 MP for OpsMgr 2007 v1.0.2430.0
This Microsoft System Center Mobile Device Manager Service Pack 1 (MDM SP1) 2008 Management Pack provides proactive monitoring of your Microsoft System Center Mobile Device Manager 2008 SP1 environment.

MDM 2008 SP1 Resource Kit Tools – Password Reset Client v1.0
System Center Mobile Device Manager (MDM) Password Reset Client provides a .cab file that you install on Windows Mobile 6.1 devices enrolled in MDM so that users can use the password reset feature in MDM.

MDM 2008 SP1 Resource Kit Tools – Reporting Services v2.0
System Center Mobile Device Manager (MDM) 2008 Server Pack 1 (SP1) Reporting Services provides a reporting and data access service across all areas of an MDM system.

MDM 2008 SP1 Resource Kit Tools – Server Tools v2.0
System Center Mobile Device Manager (MDM) 2008 Service Pack 1 (SP1) Server Tools provides tools to help administrators manage deployment and cleanup tasks in an MDM system.

MDM 2008 SP1 Resource Kit Tools – Best Practices Analyzer v2.0
Best Practices Analyzer Tool for System Center Mobile Device Manager (MDM) 2008 Service Pack 1 (SP1) helps you analyze a group of servers to determine if the prerequisites and best practices are met for MDM deployment.

MDM 2008 SP1 Resource Kit Tools – Client Tools v2.0
System Center Mobile Device Manager (MDM) 2008 Service Pack 1 (SP1) Client Tools provides tools to help administrators troubleshoot connections and monitor device synchronization for Windows Mobile devices as part of an MDM system.

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mnielsen(at)enterprisemobile.com
http://marco.blogsite.org

I’ve been compiling a running alphabetical list of which devices now have official supported upgrades available for them since the summer of 2008. This may be useful for many of you as well. New entries are in red..  Sorted by mobile operator/OEM and now made it more condensed as well!

Now included the specific OS/AKU build for each upgrade for SCMDM SP1 support.

If you know of others, updates or corrections, please let me know!

Update Dec 15, 2008: * Thanks to Wayne Philips of Airloom for these build numbers!

|\\arco..
mnielsen(at)enterprisemobile.com
http://marco.blogsite.org