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I'm going to go with.... "Yes?"

What I think you're asking is "If I build against Device 2.0 can I run it on any Device with 2.0, 2.1 or 2.2?". The answer to that is "Yes".

If that wasn't your question, please rephrase it to something we can understand.
 
Actualy, I am doing the processs for distrubuting application,

When i am doing the step building your application with xcode distribution.I stucked with the problem in code signing identity,

One guy suggest me to check the version of my OS,

I am using sdk 2.0

In portal they mentioned to select device iphone 2.2.

So only i am asking,Can we build application in using sdk2.0 ,for testing in app device.

(I am in confusion whether the certificates are working in 2.2, because i got certificates in the december 2008 only)

Thanks
judy
 
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