[Villordsutch]

I walked up and down the streets looking for my wifey (who was shopping), 'I need a ruddy app to find her!'

and wondered to myself is there such an app on the BB

You want to locate somebody, you click the app and it sends a request to the person and they have to agree for you to track them.

It then pops up on Google Maps (or BB Maps if that's how you roll) showing where the person is (and Vice Versa).

Is there something out there like this?

[RedxD]

You can ask someone to share his location over bbm, no need for a third party app

[SCrid2000]

If BlackBerry Protect is installed, you can get their location by logging in to protect.blackberry.com with their bbid.