The POP9 is the ideal party camera, hands down. With its integrated flash, even difficult lighting situations can't prevent you from magically transmuting one motif into nine slightly different pictures on the same film frame !
The Lomography Pop9 is the camera I always have with me at parties. First of all, it makes a great conversation piece, especially the bling-bling golden variant :D Almost nobody who is not a Lomographer has seen a multi-lens camera before and they are all just dying out of curiosity to know what that golden beauty without LCD-screen really is! Secondly, it makes ultra-funky pictures. There is nothing as cool as 9 times the fun! Want to increase funkiness in true Lomographic style? Load colour negative film and reverse cross-process it! Even with the flash I recommend at least ISO 400 films for indoors or cloudy weather if you want to make the most of your POP9.
The flash has a reasonable recharge rate with a fresh battery and there is nothing more to it than point, grin, shoot! So get one and have some real fun at parties becoming the centre of attention with a funky POP9 :D