A few things I got done this morning:

• Tightened up the space between components, mostly to save on copper (we might as well conserve our natural resources when we can, right?) and to open up space for potential additions (like a possibleI2C connection, as mentioned in the Questions).
• Added a couple of Open Questions. If I add any more, I'll probably divide them between those asking for technical expertise, and those that just ask for opinions from a user's standpoint.
• Made a specific recommendation for the mike and speaker connectors. (See the Parts list.)
• Minor proofreading, mostly for grammar and style.

One problem I had with the Parts list is that the reordering doesn't seem to be working. I can move things around just fine, but when I Publish it, the list reverts most if not all of my changes. This hasn't happened with the names or Comments on the Parts; only on the list order. What's up with that?