Would be nice to have a theme that has the top right horizontal icons the same size as the left vertical icons. Then I could use my finger instead of a stylus. It has already been suggested that the scroll bar at the right of the screen could be bigger.

Ouch ... it ll let not many place to other things...

It most likely can be done but it would take a new hildon layout. The one used on tablet now has the top bar locked in to 60px. Also like Khertan said wouldn't be much room left on screen after that. Scroll bars have been done on a couple of themes as well.

Most (if not all) of that stuff can be finger accessed through "Control Panel"; can't it?

Presently, I have to pull out the stylus to change the sound volume, this I do often thoughout the day. If my six icons were at least spaced farther apart I could use my finger instead. I realize that It is always faster for me to use the stylus when browsing the internet.

Can't you change the volume with the zoom buttons on top of the ITT?

Depends what app you're in. For some, that will change the system volume, but for others, only that app's volume. (There are obvious advantages both ways, but that's irrelevant.) If you're using one that doesn't affect the system volume, then you'll want to adjust the system volume from the tray for, e.g., going between speakers and earphones. Let alone if you have your media player in the background and something else up -- the status bar should be more convenient than switching apps twice. (Although if one can't reliably actuate it with fingers, it may not be; it works fine for me, though.)

Does anyone know if you can adjust volume using any kind of shell command or anything? Something that can be turned in to a Personal Menu Shortcut. Maybe that would help on for volume up and one for volume down.

Click with you finger on the sound applet and use dpad left or right to up or down volume. You can also use the center button to turn on or off mute.

Certainly, although I'd think them more at home in plauncher than pmenu, as clicking into a menu for each volume notch is impractical.

You can probably pull some dbus or gconf tricks, but also any of the command-line alsa mixers (I think I've seen at least two compiled on Maemo 4) can do it, once installed. The dbus/gconf method is better, as it's a more supported interface and doesn't require additional software, but I'm not sure what signals. The advanced-backlight source should be informative. Never mind, I got curious and skimmed said sources, then did some testing to confirm; gconf it is:
Actually, the decrease volume is slightly broken (it errors when trying to set the volume below 0), but it mainly works; complicate as needed if the ability to jump from 5 to 0 really matters.
The increase works perfectly, though.