My guess is an ARM Mac Mini first because they have already shipped that to developers.
I see many people speculating that the mini will be the first AS Mac released. I highly, highly, doubt it. In fact, I'm pretty much 100% sure it won't be. Think about it. Of all macs, it's probably the one with the smallest share - it's smaller than any laptop of course, but it's also smaller than the iMac, only the MacPro might be smaller. Why would Apple release to such a small user market? Is that going to make any noise in the media?? It's nuts. Now, you release a laptop with amazing battery life and specs and you've created waves. But a mini? What in the world are people thinking? SMH.
The small market share could help in that there is only a limited amount of 5nm capacity right now. Latest iPhones and iPad are sucking that up in large , peak demand numbers at this time. It probably is going to be a laptop that Apple ships with but I won't be surprised at all if it is a non mainstream laptop. Something where paying a substantive price premium because either Apple made it magically thin or put some magical screen on it or something to reduce the demand.
The likely far more substantive problem with the Mac Mini as a first target is that the DTK is woefully incomplete as far as I/O goes. Folks are spinning it as 'first' because already 'done all the hard work on the DTK' ( swap out the 12X , slap in a 14X and ta-da .... done. ). No 4 USB Thunderbolt 4 ( maybe 'backside' to 3 ) ports. (2 USB-C 3.1 gen 2 only. ) . 2 bandwidth limited USB A ports . No 10GbE option . The baseline limiter is that the A12X doesn't have much general purpose PCI-e lanes coming out of the package. More than a pretty good chance the A14X is in almost the same boat.
This first "Mac" Apple Silicon out the door probably doesn't have "desktop I/O" support. Apple's laptops vary from 1-4 port and that is it. The first laptop out the gate having only 2 ports would be no surprise at all. Neither would be a return of the one-port-wonder MacBook ( in part as a 'statement' as to what they can do with their own stuff that could not do with Intel's or AMD's options . Also given them an excuse to limp out without Thunderbolt on that model also. ) .
Substantially, same short term horizon for the other desktop Macs where not constrained to minimized I/O. More pins to communicate with more ports will make the SoC package bigger and that will be a substantive departure from what Apple has done in the A-Seres where the SoC package size has pretty tight space constraints. Dealing with 5-12 ports is that phones and iPads don't have to deal with. Ditto with multiple screens ( stopping at two (with one often in mirror mode)).
Apple wants the whole world to take notice -.... Who gives a rip about a mini apart from a tiny group of special requirement folks? Madness.
Apple doing what is somewhat an 'un-obtainium" device would generate buzz. The original MacBook Air intro. ( Jobs declaring the 'future' of Macintosh ). It fits completely in with Apple's "Captain Ahab' quest on laptop thinness.
Narrowing the scope being laptop won't necessarily mean it will be broad market segment.
How does a mini showcase the great battery life ASi can achieve?? How does a mini showcase ANYTHING??
I wouldn't bet the farm on better battery life. The iPad Pro 12" and the MBP 13" get around the same lifetime on a battery charge. Apple could sacrifice better battery life to the "even thinner and lighter laptop " gods. ( butterfly keyboards was the similar general trade-off that they ran with for almost 4 years; doggedly not wanting to let go. ) Or trade it off for even higher power consuming "XDR" screen.
A Mini won't showcase per se but the DTK were not for sale either. That's a rental fee. I think there is some pent up demand to get one to own and 'try out' at a reasonable price point. If Apple throws a "magically thin" laptop out there at a higher than MBP 13" prices the spectacle may not lead to a chorus of happy potential buyers.
A robustly provisioned Mini would also signal were going to be loosing out on I/O on platform switch.
Why would Apple be anxious to showcase their first AS Mac by releasing it into a sea of a bewildering and uncontrollable peripherals??
Even if Apple does a one-port-wonder , in aggregate it will still be highly likely hooked much wider range of stuff than the DTK was and bugs will come up. But yeah of highly target just hightly mobile folks who more rarely use ports , Apple can 'kick the can' on maturing the new drivers for the new OS platform for a longer period of time. Anything that needed Thunderbolt wasn't covered by the DTK so there are lots of 'holes' at the moment.
C'mon friends. Think. Think. Don't just blurt out whatever first pops into one's mind. We've got to make better quality rumors and speculation on Macrumors.
On Macrumors it often isn't "first pops into mind" . More often it is "what was only on their mind in the first place"; driven by self-reflective "what I want". "My favorite Mac product should come first and that 'other stuff' later". For example, the original post of this thread is likely about the 27" iMac probably more so than the Apple Silicon. Same driver which will drag in many hundreds of posts of "who wants that??" on whatever Mac product transitions first. ( The initial iPad threads were highly negative. etc. )
The signal to noise ratio on the macrumors front page stories generally is even lower. It is a scale problem. More people/users generate more ad views ( and more revenue for site). More folks generating opinions as "facts' generates more noise. Sadly more noise tends to generate more ad view revenue.