Android Development, SDK Version
<p>First time developing for Android.</p>

<p>I've noticed that the latest SDK is v4.x but I've noticed informally that most people are running v2.3</p>

<p>If I develop an app using the 4.x SDK. will it refuse to run on 2.3 phones? Or will certain features be disabled?</p>

<p>Should I develop using the 2.3 SDK instead?</p>
