The category stalled because we are all waiting on 20nm (or better 16/14nm coming just another few quarters later) and 64bit WITH the apps/games to use it too. In apple's case they had the 64bit but nothing special in the new versions vs. their previous model so no surprise people didn't see a WOW I need a new one in Apple. That buying shoe hasn't dropped yet on android/arm for many devices and most are waiting for a die shrink I think as that will bring massive changes in low power devices (what NV did on desktop was already impressive without the shrink and K1 is already very impressive for gpu).
At this point (heck many months ago for me) a 28nm device of any kind is out of the question for me (be it a soc, or a new desktop gpu I want). I think more people are looking at things as fairly capable gaming devices also in this area, so may be waiting either for more K1 tablets (stuff advertised directly as gaming devices that double as a tablet also, and 4K player) or the die shrink here too, more memory as standard, etc. They just seem to be giving us much of the same right now and the race to the bottom of pricing has created a lot of crappy devices with few real gems. 16GB should just be dealt a death blow as storage now on anything but a low end phone in an underdeveloped country 😉 Same story for anything under 3GB mem.
So we're waiting for 4GB+ mem, die shrinks, more capable gaming (K1+ power on gpu) and software that actually shows the gpu's new abilities. The next wave of xmas games will sell many tablets. Well, all games this year that aim at T4+ gpu levels should start to get more people to realize these things can now replace your console. Many of those same people realize the coming shrunk chips will make us start to see some REAL 64bit apps that show these tablets can act as a mini desktop/laptop when hooked to keyboard/mouse/monitor. Poor countries could start to use these to develop stuff on as this next shrink amps up power. They are useless for anything but consumption today, but that is about to change.
Thinner, and slightly better cameras don't make us buy now (even apple zealots see nothing special here). At this point I'm thinking THICKER is better (and you can give me back some battery...LOL). 2GB memory for $500 and only 16GB storage at apple? What did they expect? Samsung with some 64bit devices but 64bit turned off etc...Apple's next device will sell much better if they go to 4GB and 32GB storage for $500 along with the new chip.
Right now claiming 64bit is kind of like having a 4K bluray player in your living room. Sure it will work one day, but it's not worth much now with so little stuff to use on them. Best to wait 6 months, see all the 20nm stuff (possibly a few 16/14nm stuff tested too by then) and get some polish on 64bit along with some stuff that shows it's actually in there and means something. App/game devs need to catch up to the new hardware. I think they were kind of caught off guard by how fast mobile moved (console makers surely were too, or they wouldn't have aimed so low hardware wise) but we should have some stuff this year that uses multi-core, more mem, better gpus etc more efficiently and they'll start aiming higher knowing how many sell each year (1.2B phones yearly now and a LOT of those are top end, either samsung or apple stuff). You can now shoot much higher as a dev and know worst case a few hundred mil can use your app/games power at launch and a billion+ within 9 more months as the high end becomes low end again.
They still sell a lot of ps3/xbox360, but now you get that in mobile and even more power shortly after the shrinks of everything. New consoles can't do 4K either, another thing that might make someone go mobile and just hook it to TV for that. MS dropped the price ($50), dropped connect ($100) and still barely hit 11mil (sony has 18.5mil, but is 11mil MS sell-through or not?). So a mobile device shortly that does 4K, far more power than ps3/xbox360 with updated gpu tech etc for unreal 4 etc, ...hmmm, maybe I don't need a ps4/xbox1. I'm guessing many will ask themselves that this year hardcore console person or not. There are many reasons for stagnation, but they go away this year as power/perf amps up and devices get more mem/storage etc for that hopefully POLISHED 64bit OS by then (along with apps and games that show it off a bit better). I really can't explain apples phone sales though...Nothing special but they sold the heck out of them this Q. I was a bit surprised really. Anyway, tablets (hooked to other stuff) are about to become much more useful gaming and app wise which should change their sales numbers.