An earlier version of ICD/IS-200 has been in force since 2006.
The first iPhone (and Google Maps IIRC) were launched in 2007.
The vast majority of GPS-based services have been invented/launched after the initial ratification of this spec.
This means two things:
1) *probably* most devices sold post-2007 will be compliant & therefore be fine;
2) the devices that aren't compliant will have been manufactured prior to 2006, and ideally either have been end-of-line'd or upgraded in enterprise environments that rely on this sort of thing.
Odds of this affecting you personally in any way (consumer, enterprise or sysadmin): I'm pegging at roughly 0.01%.