I donít know that how many of you know that the Nokia N9 comes with the CalDav support for the calendar. This is also having the support for the Activesync. This is the best thing because if some windows user wants to get the Nokia N9 then he will not have any problem to sync the contacts and calendar from Windows phone to the N9. I just wanted to share this information over here so that other people can be aware of this. If you have some other useful information on this then please let me know that. I will be thankful to all the replies for this.