Main disadvantages:

• No system-wide file manager
• No videocalling
• Limited third-party apps availability
• No Bluetooth  file xfers
• No USB mass storage mode
• No multitasking
• No copy/paste
• Too dependent on Zune  s/w  for computer file management and syncing
• No music player equalisers
• No Flash or Silverlight support in the web browser
• No sign of free Bing maps Navigation so far
• No DivX/XviD video support
• No internet tethering support
• New ringtones available only through the Marketplace
• Swapping memory card requires hard reset; cards not readable by computer

Microsoft is not fossilized in their own mythology. They are finally looking competitive in the apps and services part of smartphoning and Windows Phone 7 is their ticket out of the mold.

Bing has evolved and is perhaps drawing people away from Google Search. Bing Maps even beats Google Maps on some counts (Bird’s eye view is so much better than the plain top down view). The Windows Live Messenger got social with Facebook integration.

Because Microsoft has made their new Windows Phone 7 the perfect mobile platform for accessing all of their online services....it'll beat Apple for sure....

Bing Search and Maps are a part of the OS, rather than apps, so are Xbox Live and the Zune Marketplace. And the new Internet Explorer mobile is starting to make up for years of embarrassment.

The Zune Marketplace • Games with Xbox Live integration

If you’ve got a traditional app-centric approach, you need to figure out what app does what. The downfall is that related content gets handled by vastly different apps, which complicates things. Enter Microsoft’s solution to the issue.

The center of the new mobile experience are the so-called Hubs – they herd together related stuff from the Web, from apps and from services.

In Windows Phone 7, the People hub puts together the usual phone contact info with the social networking stuff.

In short, everything about someone you know can be found here. Sure, Sense UI and MOTOBLUR for example are doing the same magix on Android OS. But Windows Phone 7 applies this whole concept to all the other features, not just the phonebook. And it’s the stock interface, not some third-party software enhancement.

The well-though OS however is not without its downsides. You can see we've got a really long list of disadvantages up there, but Apple iOS and Google Android had even longer ones at launch - not to mention the superior hardware that WP7 debuts on.

It's also good to know that Microsoft engineers are already working hard on fixing those up in further updates to the OS.

For instance, they promise copy/paste functionality in the  first months of 2011. We hope they've got many more of those in the pipeline.

So hold your horses with the bashing and hop on on the guided tour to Microsoft's latest mobile OS, because it's nothing like you've seen before and it deserves the benefit of a doubt at this early stage.