iOS iPhone 3.0 beta 2 SDK question

[BollywooD]

this may be a stupid question, but I am thinking of updating to the new beta.
However I am currently building a project for Mac OSX Leopard. will the new SDK affect that project at all?

or should I stay with Xcode 3.1.2

 

[BollywooD]

to answer my own question,

I went ahead and installed the new beta, and it doesnt seem to effect my Mac OSX project - it still compiles, and works as before.