I just got a blurb on this from the Microchip Consultants Group today.
I'm not sure what it costs, but I do have a ProMate II and it can do
"one keypress" standalone programming.

http://www.microchip.com/1010/pline/tools/picmicro/code/pm3/

Matt Pobursky
Maximum Performance Systems

On Mon, 12 Apr 2004 12:26:14 -0700, Barry Gershenfeld wrote:
> For the last few years, my ICD-1 (now ICD-2) and I
> have been the "production programmer" for all the
> PIC's that we use.  But the numbers are increasing
> and we have a need to let the production techs
> program their own stock.  I have hesitated handing
> this sort of thing over because the procedures
> involving the ICD-2 and MPLAB can get quite involved--
> MPLAB is a development environment.   I also
> suspect that an ICD-2 programming run does not exactly
> yield a production-quality part.
>
> What I'm looking for is something that will take a HEX
> file--and any other necessry info and not change it
> (MPLAB likes to turn Debug mode back on and other
> antics) and program the device via ICSP (In-circuit
> serial programming).   Ideally it would
> be upgradeable as Microchip invents new parts.  Maybe
> Microchip makes what we need.
>
> It doesn't have to be zero cost, either.  It does
> have to be reliable and simple.

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