SkyDrive, Microsoft's free online storage service, is already closely integrated into the Windows Phone platform, enabling users to share photos and documents stored in their SkyDrive via email or instant message directly from their device, or work on Office documents stored in the cloud while on the move.

The Microsoft Lync 2010 client for Windows Phone is now available in the MarketPlace. Lync 2010 is the successor to the Office Communications Server (OCS) product, providing instant messaging, presence, Voice over IP, conferencing and more all from a single, easy to use interface.

The Lync client only supports Lync 2010 server, or an Office 365 account.

The Tango video calling app is now available in the Windows Phone Marketplace, enabling you to use your front-facing camera on a Windows Phone 7.5 "Mango" device, such as the HTC TITAN as shown in the above video.
Tango is also available for iOS and Android as well as the PC.

Windows Phone 7.5 ships with version 14.1 of the Exchange ActiveSync (EAS) protocol and supports synchronisation of email, calendar, task and contact information with Exchange 2003 SP2 and later, or Office 365.

Exchange ActiveSync also provides the ability to manage Windows Phone through the use of security-related policies that are configured by the IT department, called Exchange ActiveSync Mailbox Policy. Items that can be configured include:

Windows Phone 7.5 brings with it the ability to use your device as a WiFi hotspot, allowing you to share your device's cellular connection to the Internet from up to 5 WiFi-capable clients, be it a laptop, tablet or whatever.

Should you wish to connect to a private access point (APN), or ensure that the automatically-configured connection settings for your network operator are indeed the correct ones, the procedure to manually edit 3G connection settings on Windows Phone is as follows.

Open the Settings menu and select Cellular

From the home screen, tap on the option for Email. If you are setting up an email account for the first time you will be prompted to choose what type of email account you want to configure. If you already have an email account configured, tap on the menu button and select the option to Add email account:

See how Windows Phone 7.5 makes it easier to stay close to the people who matter. Now you can organize friends into Groups, track conversations across texts, Facebook and IMs in one place, and much more. Be among the first to check out some of the best new Windows Phone features.

Microsoft have launched a web-based version of the Windows Phone Marketplace, enabling you to browse for, discover and share apps directly from your web browser, and install apps with no need to connect your device to your computer. The Web Marketplace is accessible here - http://www.windowsphone.com/en-US/marketplace

Make the Start screen on the next release of Windows Phone more like you by personalising your Live Tiles. Watch how easy it is to switch tile colours. You can even pin apps, people, games, photos, and videos to your Start screen for a more personal and convenient experience on Windows Phone 7.5 - coming Autumn 2011.