will my i phone sim card work in a blackberry curve?

[john]

i have an iphone 3gs im kinda getting tired of not having a key board so i want to try out a black berry i have will it work and if i dont like the black berry can i put it back in my iphone with no problems

[geeth]

HI yes your iphone 3g sim card will work in Blackberry curve only if it is unlocked one ..Else if your blackberry curve is locked to some other network provider then until you unlock it you can't use your old sim card in it ..You can easily unlock your Blackberry curve using sites like UnBBlock.com here they render unlock code for all blackberry mobile models at reliable cost ..You can also use the same sim back in your Iphone 3g.....