I can't, as I don't have a tablet or smartphone. And don't feel inclined to get either. =P
But to get to the spirit of the topic, I don't have an essential problem with mobile gaming, it's more that certain experiences will NOT be replicated on the platform (fighting games, to start) and any large-scale shift from Japanese companies that involves primarily focusing on mobile will involve the death/continued dormancy of IPs I like.
It's generally true that certain experiences like classical RPG's and visual novels and like can be replicated on mobile sphere (in spite of some of the stupidity involved with these ostensibly easy concepts, like Ace Attorney on tablet.) However a sufficient long transition period that could bring mobile/nondedicated gaming stuff to a more robust setup closer and yet a bit behind than we what we have today (better graphics, controllers, etc, complete parity is obv not an option any time soon)
My other problem is just the either-or nature of how the industry works. Japanese consumers have been dealing with some persistent economic troubles, and this makes the relatively higher-end traditional package game stuff less attractive. But it's not like these console gamers are switching - I think it's more that the mobile audience is bigger, for reasons that are probably obvious. In any case, I have a hard time not thinking that if things were different domestically in Japan the industry there would be healthier. Instead of the more polarized direction which is palatable to pursuit of the bottom line (blockbuster games, f2p, mid tier being squeezed out, etc.)
It's partially why I find Project X Zone 2's story so fascinating. It clearly bombed in Japan, but it very likely sold well enough in the US to merit its localization and production. The developers did comment that they waited until they heard about Western sales before moving forward on another. It makes me think that the West is the stronger economic force in gaming.