Hello friends,
I am going to buy new smart phone but quite confuse to purchase right one. hope that here I will got good help.
I have suggestion of
Galaxy S DUOS GT-S7562
Nokia Lumia 510
Nokia Lumia 710
Xperia™ Miro

Please help me to choose better one. I am looking for internet and some business application and emails and music and camera quality just for hangout with friends.

Hi Davidaddicted24 Welcome to eTi,

Nokia Lumia 510 : Business applications: Document Viewer, Pushmail (Microsoft Exchange ActiveSync).
E-mail: Yes
Music: Supports MP3, WAV, eAAC/ Video Player: Supports H.264, H.263, MPEG-4, VC-1, WMV 9, 3GPP, ASF, AVC

Camera Quality: 5 MEGAPIXEL primary camera ( good quality)

Nokia Lumia 710 : Same business features as in Nokia 510 , Emails yes, Camera quality: 5 MEGAPIXEL with high resolution as compare to Nokia lumia 510. Same media supports

Sony Xperia Miro: Same support in all the field mentioned above, except the support of secondary camera rated at 0.3 MEGAPIXEL and the resolution of primary camera is same as in Nokia lumai 510

Galaxy Duos S 7562: Same features and it also support secondary camera at 0.3 MEGAPIXEL.

In short Nokia Lumia 710 will be the best regarding your requirements.