Secondary/Back-Up Phone & Sim Switching?

[bryanc28]

I want to get a cheap back-up phone is this possible since the iPhone 4 has a micro sim?

 

[ucfgrad93]

I think you would need some sort of adapter for the microsim.

 

[Daveoc64]

I want to get a cheap back-up phone is this possible since the iPhone 4 has a micro sim?

Yes.

You can get a micro-SIM adapter that will let you use the micro-SIM in a different phone

Amazon.com has some and they're only about $3 each (search for "micro sim adapter").