what app needs to be developed? [I Ask Questions]

There aren't any really. There really isn't all that many truly useful things you can do with a smartphone or tablet to begin with. Not because there isn't an app to do it, but because it is just an app. All the truly useful functions the stand alone device can provide are well covered along with just about every patch use or secondary function. Patch use meaning things they can do with an app okay or good enough for pinch but not do really well.


The only thing to do with them thay would really make sense involves periferals and people these days aren't all that interested in that stuff these days.