Is that stable multiple versions of iPhone SDK on single Mac?
<p>I'm trying to make an app which compatible with 3.x and 4.x iOS.
But SDK 4 supports only SDK 4.x and iPad, there is no 3.x SDK for iPhone.</p>

<p>So I'm considering installing 3.1.3 SDK on my main workstation with 4.x SDK.
I know it's possible to install multiple SDKs on a Mac, but I'm afraid any unknown problem by this.</p>

<p>Anyone who experienced with multiple SDKs, please let me know what happened.</p>
