Yes, it is. The iOS Accessory SDK is public. You'd just be making an App that relies on people having this hardware already.
This works for hardware manufacturers who make iOS accessories and then want to ship an App to work with it (which is the general case of the cable.)
But you could, for instance, make an arduino hacking kit that lets you talk over the cable to a board, and sell that as an App in the AppStore.
That text communicates to me that it comes with no software to drive it and you'll have to write your own, and there are no assumptions about the hardware on the other side, but you could use it to work with an arduino.
Seems like this is the perfect piece of hardware to go with open sourced iOS software for doing development with the arduino.
Imagine being able to re-program your Arduino powered robot in the field from your iOS device!
This works for hardware manufacturers who make iOS accessories and then want to ship an App to work with it (which is the general case of the cable.)
But you could, for instance, make an arduino hacking kit that lets you talk over the cable to a board, and sell that as an App in the AppStore.
That text communicates to me that it comes with no software to drive it and you'll have to write your own, and there are no assumptions about the hardware on the other side, but you could use it to work with an arduino.
Seems like this is the perfect piece of hardware to go with open sourced iOS software for doing development with the arduino.
Imagine being able to re-program your Arduino powered robot in the field from your iOS device!