From the blog announcement on the client update:
The much awaited and anticipated Symbian update is here! We appreciate the patience with which you have been looking forward to this release. In this release we have bundled many improvements along with cool features to make the Nimbuzz experience even better!
What is new in this release:
- Chatrooms with Location & Language Filters
- Touch improvements
- Bengali language support
- Feedback page
The fastest way to download Nimbuzz is to go to get.nimbuzz.com in Web on your Symbian smartphone.
Also announced yesterday in a Nimbuzz media blitz was that the service now has over 100 million users worldwide, with growth shown in the infographic below: