Apple have more history and clout with ARM than Samsung so they don't have to wait on Sansung for anything, they use them to fabricate the chips, they use others as well. Also with the volume they are using and the stabalising of life of some production setup's it wont be long until Apple build there own fabrication plant. Though I'm sure they will wait for a nice TAX break or chance to pick up somebody elses cheap. Though it is more than viable for them.
Apple may also be worried about clones and in that by having a more than customed CPU than most will alow them to lock there iOS more and more to there kit only. Whilst not an issue now, it may down the line if they get hit with a monoply commision legal run-in and in this way they would still make a larger cut than just liscencing out iOS.
The trend in every mobile generation has been add features, screen size/colour depth and then back to battery life. It will be after all the next major selling point amongst a collection of phones with high end features.
As for the A15, its more targeted at a level that is too much for what smartphones can handle batterywise and feature wise. That said they may of used parts of the A15 with part of the A9 core making a hybrid, not everybody has to use the cookie-cutter templates ARM has to offer and Apple are free to customise or basterdise them however they like.
Apple may also be worried about clones and in that by having a more than customed CPU than most will alow them to lock there iOS more and more to there kit only. Whilst not an issue now, it may down the line if they get hit with a monoply commision legal run-in and in this way they would still make a larger cut than just liscencing out iOS.
The trend in every mobile generation has been add features, screen size/colour depth and then back to battery life. It will be after all the next major selling point amongst a collection of phones with high end features.
As for the A15, its more targeted at a level that is too much for what smartphones can handle batterywise and feature wise. That said they may of used parts of the A15 with part of the A9 core making a hybrid, not everybody has to use the cookie-cutter templates ARM has to offer and Apple are free to customise or basterdise them however they like.