Latest IE Mobile 9 user agents:

User Agent Platform Device
Mozilla/5.0(compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; SAMSUNG; SGH-i917) Windows Phone 7 Focus
Mozilla/5.0(compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; SAMSUNG; SGH-i677) Windows Phone 7 Focus Flash
Mozilla/5.0(compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 900) Windows Phone 7 Lumia 900
Mozilla/5.0(compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 710) Windows Phone 7 Lumia 710
Mozilla/5.0(compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 521) Windows Phone 7 Lumia 521
Mozilla/5.0(compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; HTC; Radar C110e) Windows Phone 7 Radar C110e
Mozilla/5.0(compatible; MSIE 9.0: Windows Phone OS trident/5.0; IEMobile/9.0; NOKIA; Lumia 800; T-Mobile) Windows Phone Lumia 800
Mozilla/5.0 (MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; Nokia; Lumia 850) Windows Phone 7 Lumia 850
Mozilla/5.0 (MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 800) Windows Phone 7 Lumia 800
Mozilla/5.0 (compatible;MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; SAMSUNG; SGH-i917) Windows Phone 7 Focus
Mozilla/5.0 (compatible;MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; SAMSUNG; SGH-i677) Windows Phone 7 Focus Flash
Mozilla/5.0 (compatible;MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 822) Windows Phone 7 Lumia 822
Mozilla/5.0 (compatible;MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 710) Windows Phone 7 Lumia 710
Mozilla/5.0 (compatible;MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; HTC; Radar C110e) Windows Phone 7 Radar C110e
Mozilla/5.0 (compatible; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 800) Windows Phone 7 Lumia 800
Mozilla/5.0 (compatible; MSIE9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; SAMSUNG; SGH-i917) Windows Phone 7 Focus
Mozilla/5.0 (compatible; MSIE9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 900) Windows Phone 7 Lumia 900
Mozilla/5.0 (compatible; MSIE9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 822) Windows Phone 7 Lumia 822
Mozilla/5.0 (compatible; MSIE9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 710) Windows Phone 7 Lumia 710
Mozilla/5.0 (compatible; MSIE9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; NOKIA; Lumia 610) Windows Phone 7 Lumia 610