> The resistor (usually to VCC) is called a pullup resistor, not a
> current-limiting resistor.

Sorry. My fault - for some reason I didn't want to call it that. Wouldn't
seem to be limiting much since the port's not asking for much in an input
state ;)

> You are, of course, configuring your I/O port for input, so it is in the
> high-impedance state, and negligible current is actually flowing in or out
> of the PIC.

Duh. Again, I seem to be theory impaired right now.

Yes. Something sticks in the back of my mind that the ports prefer either
sinking or sourcing - though that's more for output. Didn't want to over do
it.

> Either way, it is arbitrary and up to you to
> decide whether you'd rather consider the switch to be "on" when it's open
or when it's
> closed.

I'll err on the side of I don't want much of anything to happen in a short
or "unavailable" situation.

Thanks.