There was a long thread over in the Maschine forum about; well, I don't know what it was about, but a lot of discussion around iPads.
It has be wondering how others are using mobile; either as a primary platform or accessory.
For example; I have a few apps on my android phone and iPad. I'll sit and play with Koala on my phone. I like the resampling workflow and will probably end up syncing a folder of samples over to my phone just to play with Koala. I have Drambo and AUM on my iPad. Sometimes I'll just sit and play with Drambo. Sometimes I'll connect the iPad to my audio interface and route my hardware through AUM.
In both cases, I'm just 'playing'. Exploring noise, rhythm, etc. I'm not truly trying to make a track.
I have a lot of accessory apps that I turn my mobile devices into tools. For example, I have an app that will let me send a note in via midi and it sends out whatever chord I want. I use it on an old Android tablet that's connected to my midi interface. Everything else is connected to the interface too (including my network); so everything has that function now. I use the tablet to control my audio interface's mixer. I have an old surface go running ChordieApp. I'll route a euclidean sequencer from drambo into maschine. I could keep going. I love using my mobile devices this way; especially older stuff I'd otherwise retire.
So are you using any? If so, when, what, why and how?