Well, gentlemen, you accomplished your goal and confused the noob
I've read the discussion and the tutorial jethro linked and I see the following:
Touch and Mogul have stand alone GPS (and Tilt, Q9C, BB 8830), which will function without the network, like MattOktaNZ's in NZ without CDMA network.
While on network the GPS will function as GPS-A giving you the benefit of network assisted GPS. Depending on mode it will either use data connection or not.
Using map data off mSD card does not require a data plan.
Having Touch withouth data plan is like eating a bagel without the shmear.
If you are not smiling yet, read my user name again.
OM