GPS performance on ipad 3G without a data plan

Uh no. But as the op stated and me too no need for data and that $3 app has no map so it'd have to use data.

The specs seem to imply that even the wi-fi only iPad has GPS chip.

I have to correct myself. Looking at the specs again, I find the following:

Location
Wi-Fi
Digital compass
Assisted GPS (Wi-Fi + 3G model)
Cellular (Wi-Fi + 3G model)

I was planning to get the Verizon version with their Mi-Fi on Thursday, but since the 3G is not built-in, must question whether it has the GPS chip. That would be a deal-breaker.

Message was edited by: FredrickM

Page 121 of the iPad Users Guide says:

Your approximate location is determined using
available information from local Wi-Fi networks (if you have Wi-Fi turned on).
iPad Wi-Fi + 3G also uses cellular networks and GPS to determine your location.

Fredrick, the WiFi-only model does not have a GPS chip installed. That only comes with the WiFi+3G model. But, do read Illaass's initial response to the original post for a point about use of the GPS function.

You don't have to have the data plan, or pay for 3G service, to use the GPS. But there is a concern about mapping with just the GPS.

I do not have the 3G model so can't speak about experience with it, but I sure do like GPSs when traveling.

Ralph, thank you for the response. I wonder if anyone with 3G can give some estimates as to the amount of data use for some "common" tasks. E.g. using 3G & GPS for navigation while driving for about an hour. Surfing the web for an hour. I am trying to get a sense of real world costs for using the data plan.

http://www.att.com/standalone/data-calculator/index.html

If you are going to use it for navigation I would purchase a GPS app unless someone is going to ride with you and read you directions.