iPad 3G and iPhone data plan

I picked the 3G iPad for 2 reasons: I want the 3G data while traveling, and I want the GPS because so many mobile apps make good use of it. I didn’t like the wait but it was worth it. Even without a 3G data plan active, the built in GPS is useful when coupled with a GPS app like Motion GPS, which has support for map caching. I have maps for the entire Greater Seattle area (street and topo) cached on my iPad.

For the car, I find the iPad to be a better car GPS than a mobile phone for two reasons. Because of the larger screen, I can nearly always see what I need in a single glance. The distraction time is less than with a mobile phone where the need to scroll, swipe, and tap little buttons is greater. The other reason the iPad beats a mobile phone for GPS is raw speed. Pressing a button results in instant changes, so there’s very little time spent glancing at the device to see if the desired data is displayed yet.

The best 3G iPad feature is being able to drop my iPhone SIM into the iPad and use the 3G data plan I already pay for. The ability to do so is limited by only two things: the carrier profile on the iPad needs to be set appropriately, and the iPhone SIM cards physical size. The iPad is not carrier locked so setting the carrier profile is a snap. That leaves dealing with the SIM cards physical size.

Some people have speculated that Apple chose the micro SIM format as a concession to AT&T. While that may be the case, I believe that Apple is leading the industry towards adoption of the micro SIM format and the soon to be released iPhone will also use the smaller SIM card.

I wanted to use the iPad with my existing 3G iPhone. An old credit card (for adapter material), a pair of kitchen shears, an x-acto knife, and a bit of careful trimming yielded me an adapter and a micro SIM I can use in both devices.