An analyst at Frost & Sullivan has claimed that Research In Motion (RIM) is working on 4G BlackBerry ‘Triton’  and it will be launched in December

Reportedly 4G BlackBerry will have a front facing camera and a 5MP rear facing camera, video conferencing likely. So far none of manufacturer has released LTE enabled handset. If RIM pulls this one then it will certainly enhance its position against iPhone 4.

Last month BlackBerry Storm 3 was rumored to support LTE for Verizon Wireless by the end of 2010,  but this seems unlikely now. See intomobile article BlackBerry Storm 3 to Offer Wi-Fi Hotspot, 5 Megapixel Camera? for details.