I would say buy it for music, and look at the video playback as a bonus feature (like fm radio support)
my 605 wifi, my pictures/movies i made are not to bright - i really have to jack my 605 up in sunlight/outdoors to see. i was hoping the 105 would be able to handle it. and i find the 605 very bright at night in bed and kind of hard to dim..
i was hoping the 105 would be something i could cart with on my bike trip...
but since that is next week..it doesn't look like it is going due to availability.