So, it looks like the Japanese smartphone market is starting to stabilize, barring an unforeseen major event or game (a la Lineage 2 Revolution in Korea caused a major market expansion).
Smartphone app revenue, sans in game advertising revenue, is currently 3 times the combined software and hardware revenue for dedicated devices, and that's probably about the ratio we'll be sitting with for a while.
The interesting impact here is that now publishers will have to actually try and take share from other publishers instead of living in the growth segment. Expect to see lots of shake-ups and more risks as publishers try to do this.
I think Nintendo will take a large piece of that pie. They have learned a lot from Mario and Fire Emblem and they have big games IP that they can use for huge successes like Animal Crossing and Mario Kart.