Symbian announced version 9.3 of its flagship smartphone OS. It adds several important high-end features, but also includes the ability for vendors to strip the system down to make it useful in lower-end handsets. In terms of volume shipments, Nokia still remains the leader in Symbian handsets. The OS is used in all of the company’s S60 handsets.

New features in 9.3 include:

• Improved memory management and general speed boosts because of that
• Native support for WiFi
• Support for firmware OTA (FOTA), HSDPA, IPSec for UMA and push-to-talk over cellular (PoC)