Ecutek map with speed limit?
 

Since we can have up to 4 maps selectable via cruise control stalk, is it possible to include say a default "valet map #1" that has a speed limit (e.g. 25mph) set for that map only?

You could have per gear rev limits set per each map mode. Without my laptop I can't confirm whether speed limits are possible.

@DeliciousTuning do you know if it's possible to set speed limit on the map?

I've looked through the maps and see nothing to govern the speed, however you could set up an ignition map to retard timing at a set speed,a bit like creating a soft limiter.

Alternatively use the per gear setup so that each gear is limited to a lower RPM to create a "speed limit". Something like:
1: 5000
2: 3500
3: 2700
etc

A rev limit would be more desirable. If someone gets in your car and can't rev passed 3000 rpm they will never try to see how fast it can go. On my mr2 my plan was if i had to have someone i didn't know drive it, I would lower the boost setting in the ecu to lower then the waste gate so the ecu will think that something is wrong with the boost controller and cuts fuel when it sees higher boost then the setting. I tried it once and it works good.

It doesn't matter if the car is set to limit RPM's to 3K or MPH to 25, I never ever let my car in valet. They will find a way to try and abuse it if they want.