Marco Arment

Now we're going to hear from all four people who live there.

We're not too old to say that?

What do you think, John?

One week after it's released?

What's your position on having test devices for your life as an iOS developer?

The reason I ask is that one of the excuses I've always used over the years is that when there is a reasonably new and different form factor of a device, I feel like I should probably have one as an iOS developer.

Not only just to have extra devices to put betas on and stuff, but also if it's a different form factor...

I should know how that handles.

I should know how it feels in the hand.

Where should controls be?

How big should controls be?

How should things be laid out?

And sometimes you can just guess.

When the phone gets a little bit bigger, if things are generally the same other than a small size difference, that doesn't usually require... I don't have every single iPhone model.

I have a few.

But when something is as different as going from iPhone to iPad...

you should probably have an iPad if your app runs on iPad.

I think going from regular iPhones to the folding iPhone, that's pretty different physically.

And there might also be very different software features.

And yes, we will have a simulator that you can see how your app is laid out in the simulator.