I agree, which is why (aside from initial hype) I didn't make a big deal about it.
As for [unparseable or potentially dangerous latex formula], it shouldn't be a key ([ENTER][x] works fine.), [unparseable or potentially dangerous latex formula] and [unparseable or potentially dangerous latex formula] should be unshifted (and [unparseable or potentially dangerous latex formula]/[unparseable or potentially dangerous latex formula] should be their shifted counterparts.) I still fail to see the real purpose of arrow keys (except today's kids wouldn't recognize a calculator without them)
I kinda wish they'd bring back the HP41's ability to "cancel" a keystroke by holding it down for a second.
I probably should come up with a prospective design for a calculator. When I get some time.
~MP