Hello sommeralex,
we cannot be sure about it, but as Android relies on GPS as a key-functionality, probably the most devices will be GPS-enabled (except the very low-cost ones perhaps).
Haven't had a look/thoughts on that, but maybe this will cause an exception:
Using java Syntax Highlighting
myLocationManager.getCurrentLocation("gps");
Parsed in 0.030 seconds, using
GeSHi 1.0.8.4
Regards,
plusminus