I've found it extremely useful to have a mobile client that lets me interact with scripted objects when I'm away from my home laptop. Yes, I get that the experience is unlikely to be anywhere near as rich, but being to be 'there' inworld with someone and sit and play - normally to them, which matters - makes a huge difference. ATM, Lumiya is borked and I'd love to see it straightened out. I'd pay for a 'fresh' v4.