Top 5 social networking Smartphone in 2011

Top 5 social networking Smartphone in 2011 : 

1. BlackBerry Torch 9800  : e RIM BlackBerry Torch 9800 and BlackBerry OS 6 offer much-needed improvements to stay in step with the competition, and keep BlackBerry enthusiasts happy. 
2. HTC Desire HD : short battery life; plastic cutouts could have been better designed; no built-in storage; screen doesn't look as vibrant as AMOLED or sub-4-inch LCD panels.  Facebook and Twitter, Friend Stream> on the HTC Sense also aggregates photos from your Flickr account.
3. LG Optimus 7 :  LG Optimus 7 offers is the right combination of technical features elegant and stylish design; DLNA sharing feature 
4. Samsung Galaxy S (I9000)  :   1GHz processor; 4-inch Super AMOLED display; good camera which supports 720p video recording Android smartphone is an excellent high-end Android smartphone that will benefit greatly 
5. Sony Ericsson Xperia X10 :  Large 4-inch touchscreen display; 3.5mm audio jack; 8.1-megapixel camera Xperia X10 has a few compelling features, but given the stiff competition from the likes of HTC  from Facebook and Twitter updates to recent text messages and call history