The fact that there's a lock in at all pisses me off enough that I'd force our group to change apps or exclude me, I'd be doing them a favor imo. I'd be more polite about it, of course, but I have no use for closed ecosystems that only work on one device, and I'm not quiet about it. I don't care what device you use, even if it's an apple device, but don't use software that doesn't also work on other devices.