Do you think it would be worthwhile to contact HTC - however one does that - and request that feature? I would suppose that's how they know what customers want...
I already did a few days back. I used the customer service link at the top of this page:
HTC Mobile Phone Support - DROID ERIS by HTC (Verizon) - Display
to e-mail them. Unfortunately, while they replied quickly (kudos for that) I got no real useful reply, rather noncommittal, "can't tell you what the next version will have etc." (no kudos for that) .. however, I think it can't hurt if several more people e-mail them about this features.