How much technology on a bike is "too much"?

[ColinJ]

I would because it's so unnecessary. There are phones now that can read out texts or caller names. There seems no need to read from the phone while the vehicle is in motion. I can only think of looking at a screen if it's showing you roadsign-style or map-style directions as being a valid reason.

I'm not suggesting it as a recommendation, but rather as a limit!

I don't drive so it would never apply to me, but I never use my phone on the move on my bike. I would always stop somewhere safe to use it.