Microsoft Windows Mobile
Windows Mobile is an operating system that has both a look-and-feel and a programmer API that are similar to Microsoft Windows but which runs in a dramatically reduced footprint. Windows Mobile is the successor operating system to Windows CE.
Windows Mobile Versions
Windows Mobile runs on multiple hardware platforms including Pocket PCs, smartphones, Portable Media Center, and automobiles. These hardware platforms did not always exist from the inception of Windows Mobile.
Windows Mobile 2003
Windows Mobile 2003 was released on June 23, 2003, and was the first release under the Windows Mobile banner. It came in four editions: "Windows Mobile 2003 for Pocket PC Premium Edition", "Windows Mobile 2003 for Pocket PC Professional Edition", "Windows Mobile 2003 for Smartphone" and "Windows Mobile 2003 for Pocket PC Phone Edition". The last was designed especially for Pocket PCs which include phone functionality. The Professional Edition was used in Pocket PC budget models such as the iPAQ rz1700 series. It lacked a number of features that were in the Premium Edition, such as a client for L2TP/IPsec VPNs. Windows Mobile 2003 was powered by Windows CE 4.20.
Windows Mobile 2003 Second Edition
Windows Mobile 2003 Second Edition, also known as "Windows Mobile 2003 SE", was released on March 24, 2004 and first offered on the Dell Axim x30.
Windows Mobile 5.0
The biggest difference between Windows Mobile 5.0 and previous editions is that user data in WM5 is no longer stored in volatile memory. This means that the user data saved on the mobile phone will not be erased if the battery is disconnected or has depleted. In Windows Mobile 2003, if the battery depletes, or is disconnected for more than 15 minutes, all user data is lost.
Windows Mobile 6
Windows Mobile 6 was released in 2007. Some users are able to update their Windows Mobile 5 to the new 6.0 version for free. WM6 will integrate tightly with Windows Vista. Challenges facing forensic investigators are the support for VoIP and advanced multimedia. While it is too early to offer details or experiences, it is touting to be more in line with the Blackberry "push" model then the previous Windows CE "pull" model.
Windows Mobile 6.1
Windows Mobile 6.1 was announced April 1, 2008. It is a minor upgrade to the existing Windows Mobile 6 platform which brings with it a redesigned Home screen featuring horizontal tiles that expand on clicking to display more information, although this new home screen is featured only on Windows Mobile Standard edition. Several other improvements such as threaded SMS, full page zooming in IE and 'Domain Enroll' have also been added. Domain Enroll is functionality to connect the device to System Center Mobile Device Manager 2008, a product to manage mobile devices.