This software release brings Nokia's Comes With Music service to your device, along with an improved Music player application. When you register your device with the Comes With Music service, you can download songs from Ovi Music for free. In addition, this release includes updated versions of several applications, such as Ovi Store, Quick Office 6.2 with Office 2007 support, and Lotus Notes. There are also improvements to general performance and usability.
I just upgraded my firmware.
To check your phones firmware type *#0000# and to check the latest firmware available for your phone check this page
Thanks Naas for the comment