Mac x64 with installed ADT, Can’t find android phone too:
$ echo $ANDROID_HOME
/Applications/Android/sdk
$ echo $JAVA_HOME
/usr/libexec/java_home
$ echo $NDKROOT
/Applications/Android/android-ndk-r9
$ /Applications/Android/sdk/platform-tools/adb devices -l
List of devices attached
4100b9d1f9ef7000 device usb:1D130000 product:craterxx model:GT_I9152 device:crater