Latest Fennec 4 user agents:

User Agent Platform Device
Mozilla/5.0 (X11; Linux x86_64; rv:2.0) Gecko/20110402 Firefox/4.0 Fennec/4.0b3 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686; rv:2.1.1) Gecko/20110415 Firefox/4.0.2pre Fennec/4.0.1 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686; rv:2.1) Gecko/20110318 Firefox/4.0b13pre Fennec/4.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686; rv:2.0b7pre) Gecko/20101103 Firefox/4.0b8pre Fennec/4.0b2 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686 on x86_64; rv:2.1.1) Gecko/20110415 Firefox/4.0.2pre Fennec/4.0.1 GNU/Linux Unknown
Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.9.2.13) Gecko/20101203 Mozilla/5.O(Android;Linux armv7l;rv:2.1) Gecko/20110318 Firefox/4.0b13pre Fennec/4.0 ( .NET CLR 3.5.30729) Android Unknown
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.2a1pre) Gecko/20110331 Firefox/4.2a1pre Fennec/4.1a1pre Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.1.1) Gecko/20110415 Firefox/4.0.2pre Fennec/4.0.1 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.1) Gecko/20110318 Firefox/4.0b13pre Fennec/4.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8) Gecko/20101221 Firefox/4.0b8 Fennec/4.0b3 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1; rv:2.1.1) Gecko/20110415 Firefox/4.0.2pre Fennec/4.0.1 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.0; rv:2.1.1) Gecko/20110415 Firefox/4.0.2pre Fennec/4.0.1 Windows Vista Unknown
Mozilla/5.0 (Windows NT 5.1; rv:2.1.1) Gecko/20110415 Firefox/4.0.2pre Fennec/4.0.1 Windows XP Unknown
Mozilla/5.0 (Windows NT 5.1; rv:2.1) Gecko/20110318 Firefox/4.0b13pre Fennec/4.0 Windows XP Unknown
Mozilla/5.0 (Maemo; Linux armv7l; rv:2.1) Gecko/20110318 Firefox/4.0b13pre Fennec/4.0 Maemo Unknown
Mozilla/5.0 (Maemo; Linux armv7l; rv:2.0b8pre) Gecko/20110328 Firefox/4.0b8pre Fennec/4.0b3pre Maemo Unknown
Mozilla/5.0 (Maemo; Linux armv7l; rv:2.0b13pre) Gecko/20110315 Firefox/4.0b13pre Fennec/4.0b6pre Maemo Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.1) Gecko/20110318 Firefox/4.0b13pre Fennec/4.0 Mac 10 Unknown
Mozilla/5.0 (Linux; U; Android 2.2; en-us; T-Mobile HTC_G2 Build/FRF91) Gecko/20110415 Firefox/4.0.2pre Fennec/4.0.1 Android 2 G2
Mozilla/5.0 (Linux arm) Gecko/20110318 Firefox/4.0b13pre Fennec/4.0 GNU/Linux Unknown