Which iphone version to target?
I built my app targeting 3.1.2, but now I'm getting close to releasing it I thought maybe I should target a lower SDK version, so more people can use it. 

How low should I go? 

It works when I test it in the Simulator at 3.0, but my device is 3.1.2. I don't really know the deal with penetration numbers and wether it's best to target the latest SDK version?
Which iphone version to target?
===

I built my app targeting 3.1.2, but now I'm getting close to releasing it I thought maybe I should target a lower SDK version, so more people can use it. 

How low should I go? 

It works when I test it in the Simulator at 3.0, but my device is 3.1.2. I don't really know the deal with penetration numbers and wether it's best to target the latest SDK version?