Latest iOS 4 user agents:

User Agent Browser Device
WhatsApp/2.6.4 iPhone_OS/4.3.3 Device/iPhone_4 WhatsApp 2 iPhone
SubStream/0.7 CFNetwork/485.12.30 Darwin/10.4.0 Unknown Unknown
Pandora/3.1.8 CFNetwork/485.12.30 Darwin/10.4.0 Pandora 3 Unknown
Opera/9.80 (J2ME/MIDP; Opera Mini/5.0 (iPhone; U; fr; CPU iPhone OS 4_2_1 like Mac OS X; fr) AppleWebKit/23.405; U; en) Presto/2.5.25 Version/10.54 Opera Mini 5 iPhone
Opera/9.80 (J2ME/MIDP; Opera Mini/4.3.24214; iPhone; CPU iPhone OS 4_2_1 like Mac OS X; AppleWebKit/24.783; U; en) Presto/2.5.25 Version/10.54 Opera Mini 4 iPhone
Opera/9.80 (J2ME/MIDP; Opera Mini/4.3.24214; iPhone; CPU iPhone OS 4_2_1 like Mac OS X; AppleWebKit/24.783; U; en) Presto/2.5.25 Opera Mini 4 iPhone
Mozilla/5.0(iPad; U; CPU OS 4_3 like Mac OS X; en) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/6.0 Mobile/10B350 Safari/8536.25 Mobile Safari 6 iPad
Mozilla/5.0 AppleCoreMedia/1.0.0.8J2 (iPad; U; CPU OS 4_3like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/4.0.4 Mobile/7B367 Safari/6533.18.5 Mobile Safari 4 iPad
Mozilla/5.0 (Ruizu; U; CPU iPhone OS 4_2_1 like Mac OS X; ru-ru) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5 Mobile Safari 5 iPhone
Mozilla/5.0 (iwww.xbext.com:6789Phone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7 Mobile Safari 4 iPhone
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8L1 [FBAN/FBIOS;FBAV/5.3;FBBV/89182;FBDV/iPod3,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.5;FBSS/1; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 3
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8L1 [FBAN/FBIOS;FBAV/5.2.2;FBBV/82131;FBDV/iPod3,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.5;FBSS/1; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 3
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8L1 [FBAN/FBIOS;FBAV/5.0;FBBV/47423;FBDV/iPod3,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.5;FBSS/1; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 3
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8L1 iPod3,1 BingWeb/3.03.1428.20120423 Microsoft Bing 3 iPod Touch 3
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_5 like Mac OS X; en-au) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8L1 [FBAN/FBIOS;FBAV/5.4.2;FBBV/114387;FBDV/iPod3,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.5;FBSS/1; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 3
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_4 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8K2 [FBAN/FBIOS;FBAV/5.4.2;FBBV/114387;FBDV/iPod4,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.4;FBSS/2; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 4
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_4 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8K2 [FBAN/FBIOS;FBAV/5.2.1;FBBV/79939;FBDV/iPod3,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.4;FBSS/1; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 3
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_4 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8K2 [FBAN/FBIOS;FBAV/5.0;FBBV/40121;FBDV/iPod4,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.4;FBSS/2; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 4
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8J2 [FBAN/FBIOS;FBAV/5.4.2;FBBV/114387;FBDV/iPod3,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.3;FBSS/1; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 3
Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8J2 [FBAN/FBIOS;FBAV/5.3;FBBV/89182;FBDV/iPod4,1;FBMD/iPod touch;FBSN/iPhone OS;FBSV/4.3.3;FBSS/2; FBCR/;FBID/phone;FBLC/en_US] Facebook 5 iPod Touch 4