That's more AR, there's the Apple Vision that has an in-the-air keyboard, but you'd look kinda strange. Others have used chorded keyboards, which is a bit more

That's more AR, there's the Apple Vision that has an in-the-air keyboard, but you'd look kinda strange. Others have used chorded keyboards, which is a bit more discrete. I personally wouldn't for work purposes though. Are you thinking sitting somewhere to work, or working while walking? I couldn't do the latter.