This! Exactly. I have used a Surface Pro, and after the first hour or so, I really couldn't see why this is anything other than a laptop with a detachable keyboard. Hear me out - I think that devices are defined at least as much by software and interface as hardware form factor. What makes a smartphone a smartphone? Not just the fact it's big and has a touchscreen, but the software it runs. The fact that Surface runs a full desktop OS, which needs a keyboard and mouse to use effectively (as do 99% of the apps available for it), makes it a PC in my eyes. Sure, there are some touch-optimised apps for Windows, but despite what the Microsoft fanboys say, there really aren't a lot (and yes, apps do matter - not just quantity but quality....even where there are touch apps for Windows, they are generally light years behind iOS and Android apps in terms of quality and features).
I really think MSFT is fooling people with a big marketing trick here, and I'm sorry, but lots of people here are sure falling for it. They're being sold a tablet, and this idea that they can kill two birds with one stone, but what they're getting is a novelty PC.
Sorry, I know lots of people really like the Surface, and it's fine, maybe it's the perfect laptop for you; it's lighter than many laptops, it's better build-quality than most Windows laptops, and it has great touchscreen features including the ability to use a stylus, if you like touchscreen on your laptop (which Apple doesn't even offer) - but it's not an iPad competitor. Even MSFT knows this - notice how they are mostly comparing it to MacBooks?
The best way to explain it is that I could imagine carrying both a Surface Pro and an iPad in my bag - they are completely different computers, running different software, for different tasks (or different ways of doing the same tasks). They are not the same. I could NOT imagine carrying both a Surface Pro and another laptop - that would just seem silly. That would be carrying two laptops....If it looks like a laptop, and it feels like a laptop, and it works like a laptop - it's probably a laptop.