Ok here's my input:

 

contract mai kinnu parhca re... Not necessarily. Go to www.ebay.com and search for unlocked iphone (3G, 3Gs or 4). Auction ko sabai content ramrari padi sakera matra kina ebay bata.

unlock kasari garne...jailbreak k ho khai..... as mentioned above, you can buy unlocked iphones on ebay. unlock means, you can use the iphone with any carrier. With jailbreak, you can download apps and other settings that normal iphones don't allow.

Nepal ma compatible hunu parhca re software re network haru... as far as i know, nepal ma use garna milcha..

SIM fit hunna re..k k generation bhanchan.... nepal ko sim lai yaha ko sim jastai garera katna milcha kyaare.. sth i heard.. gooogle it ! 

yaha bata already k k garera pathaune..jastai app download haru..... app haru download bhaneko tyestai ho... kati dherai apps cha, k k download garney.... nepal ma phone ma net kati ko use garna milcha, kunni?

Mero feri t-mobile cha..att kasari line... unlock bhaye pachi jun ni career use garna milcha

kati cost parcha hola.... unlocked iphone 3G > $300/  3GS > $350

courier garna kati lagcha hola...paincha ki nai?... mili halcha ... fedex!