Just because the device is too slow for you does not make the device useless in totality. What are you going to ask for next? HDMI-in port on the iPad and MacBook so you can use it as a display when the internals are outdated?
Exactly, and it would be even less useless in totality if the screen was still feasible to use on its own.
> HDMI-in port on the iPad and MacBook so you can use it as a display when the internals are outdated?
Now that you mention it, I would like to use my old iPad as a second screen, since it's a mobile form factor already and is otherwise nearly useless for no intrinsic reason. But for the iMac, which is obviously a stationary large screen in an appealing enclosure, it would be a returning feature with a standard TB 4/5 port and cable, like it was originally with TB1.