It's fairly likely that third parties will make some kind of somewhat-dockable display+battery. The choice of micro HDMI likely will help with some designs of t

It's fairly likely that third parties will make some kind of somewhat-dockable display+battery. The choice of micro HDMI likely will help with some designs of that kind of accessory, given how large the strain reliefs of full-size HDMI cables tend to be. Although I agree with you that for most uses providing at least one full-size HDMI port would have been ideal.