Samsung duos phone. well about samsung, i can tell one thing which all u guys are looking for.it is the most strongest phone.it was falled from height for many times, but still working without any breakage.and even touch screen was also working perfectly.i bought it 3 years before.it is very easy to acess for the one who use normal phone also. it has social media like fb, twitter, email, chaton, flickr, orkut, photobucket.
cost price when I bought is 3700.good sound reception also.
finally I have to say this.very reliable and durable.cost worthy too