Windows Mobile 7 will be called Windows Phone 7

In description of an event in Canada, Microsoft itself mentions “Windows Phone 7″ as opposed to “Windows Mobile 7″:
Windows Azure. Office System 2010. Visual Studio 2010. Windows Phone 7. The Microsoft-based platform presents a bevy of opportunities for all of us. Whether you are an IT Manager, Developer, or IT Pro knowing how these will impact you is critical, especially in the new economic reality.
To start the day we will explore the Microsoft-based platform through a scenario that will demonstrate different points of view – from developer to IT Pro; from consumer to the information worker. From the client to the cloud, this fun-filled demo-intensive exploration will excite you about the possibilities of the Microsoft-based platform. You’ll see how to build next generation applications with technology like Silverlight, .NET 4.0 and Visual Studio 2010. You will find out how to consume those applications on a variety of devices, like mobile devices running Windows Phone, netbooks and PCs