In the iPhone SDK I don\'t see the same SCDynamicStore used on Mac OS X to get the SSID name that your wireless network is currently connected to isn\'t availab
After digging around I found the anser to this. There are unpublished APIs in the Preferences framework. For examples of this one can look at the Stumbler code hosted on Google Code.
I filed a radar with Apple (#6407431/OpenRadar version) that was marked as a duplicate of #5814810). If you want this officially supported then please also file a radar at bugreport.apple.com.
Update: The above Stumbler code is for 1.x revision iPhone OS SDK. For iPhone OS 2.0 and beyond developers will have to look in PrivateFrameworks/Apple80211.Framework and all that implies.