I'm getting billed for callertunes and bought 2 already, one i have set for specific people and the other i have set as default.
however if i call myself from a phone that isn't in the list, i get the traditional ring tone rather than the one i set as default.
currently it is:
default: starwars empire march
group 1: derezzed - daft punk
however no matter who calls me, they get the traditional callertune (same as if callertunes wasn't enabled)
Note: i am running cyanogenmod 10.2 on my g2, however since callertunes are an account setting and not a hardware specific setting the ROM i'm running should make no difference, but i thought i would mention it.