Therefore, I suggest that the buttons should be labeled very simple symbols which reflect their general function within the pando OS and windowed apps. I've given a few examples
here.
For gaming directives (which everyone seems to be concerned about), these symbols could be abbreviated or even called by their names.
The reason I don't like the icons idea is the same reason I don't like the Greek alphabet idea. You can't type it - not unless you know some magic three-figured keyboard sequence - or some four digit ALT code.
How do you type "Press the Check Mark button!" without saying "Check Mark"?
What is the keyboard shortcut to bring up the House symbol on my screen?
Where's the key that I press to type a Cross? You mean X? Well, then say X. And, yeah, I know there's a ? key.
But the point is - if I'm typing up a walkthrough for a game - or even a help file for my software - I want to be able to say "Press N" or "Press X" or "Press 4" - something that I can type. I'm sure it would help programmers, too, when writing on-screen tutorials for their games. "Press the button that kinda looks like a box with a triangle on top." Does not illict the immediate response of "Press X!" Or just "X". Could you take a picture of it, and put it in the game, or software? Sure could. But why add an extra layer of work to, from what I can tell, will be mostly volunteer developers?
My keyboard is not a gaming console - nor is it a gaming keyboard. It's actually a multimedia keyboard with special buttons for volume control, play, pause, etc. And a few shortcuts that directly go to my web browser, my email, chat, media player, etc. But there are also 5 keys at the very top of the keyboard that are juswt labelled "1, 2, 3, 4, 5" - those keys are not a part of number row - they are they're own thing. writen above them all ti says is "my favorites". Those keys can be linked to whatever I want them to. A Word processor, a website, a game, whatever. those keys do not distract me. They do not my keyboard any less "serious" or businesslike. But I can Type them. "Press the 1 Button" - and the word "button" is different than "key" so most people would know the difference. Maybe not all - I admit - but most. Or I could be a little more specific and say "Press the 1 Favorite button" That should be enough separation.
My point is - they added buttons and it didn't take away from the usefulness of it. It's not distracting. It doesn't get in my way when I type. It isn't gaudy or daggy. And, most of the time, I forget they are there. Just like the people who use the Pandora as a UMPC first and a gaming device second (or never) will not be distracted by the NSEW/ABXY/@#$% buttons. Unless they are a part of the GUI - (which I kind of hope they are, at least as one mode of interaction) - they may never use them. Then again, they may use them as shortcut keys, or in place of a mouse/trackpad.
I think the 4 buttons can be used within the GUI in a way like you expressed - one selects, one brings up a tool tip/help thing, one goes back, one brings up a menu or whatever. But their labels don't have to reflect that. They could - definitely - but they don't have to.
My big problem with it is how do you type it. Other than that, it's fine with me.