Latest Nokia Ovi Browser user agents:

User Agent Platform Device
Mozilla/5.0 (Series40; NokiaX3-02/07.51; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.0.0.0.31 Symbian OS Series 40 X3
Mozilla/5.0 (Series40; NokiaX3-02/06.00; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.0.0.0.31 Symbian OS Series 40 X3
Mozilla/5.0 (Series40; NokiaX3-00/08.54; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.0.0.0.31 Symbian OS Series 40 X3
Mozilla/5.0 (Series40; NokiaX3-00/08.50; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.0.0.0.31 Symbian OS Series 40 X3
Mozilla/5.0 (Series40; NokiaX3-00/08.40; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.5.0.0.27 Symbian OS Series 40 X3
Mozilla/5.0 (Series40; NokiaX2-02/11.84; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.0.0.0.31 Symbian OS Series 40 X2
Mozilla/5.0 (Series40; NokiaX2-02/10.91; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.5.0.0.27 Symbian OS Series 40 X2
Mozilla/5.0 (Series40; NokiaX2-02/10.90; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.0.0.0.31 Symbian OS Series 40 X2
Mozilla/5.0 (Series40; NokiaC2-02/07.66; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.0.0.0.31 Symbian OS Series 40 C2
Mozilla/5.0 (Series40; NokiaC2-02/06.52; Profile/MIDP-2.1 Configuration/CLDC-1.1) Gecko/20100401 S40OviBrowser/5.5.0.0.27 Symbian OS Series 40 C2