Not electromagnetically... Although it's very convenient, it seems very insecure with this level of ease when swapping.

Not really, phones/tablets are incredibly popular...dare I say even more so than PC's. Only a matter of time before a custom market opens up.

Phones are understandable because almost everyone above the age of 12 has a phone.

But you can't count on a phone to do computer things.

Tablets may be able to but not very well.

I'm assuming their counter argument will be that computers and phones are essentially the same thing. While I agree with this because it's a fact, consumers don't even consider it because they see the two as completely different devices that serve different purposes.

You will get to design and make your own mods

I never said it would replace computer things, not yet anyway, but technically it's possible. I haven't really followed it but if you can dock your phone and have it output to your monitor (im sure this is possible, right?) you'd just need to couple it to a bluetooth keyboard & mouse (they have those too, right? for phones? no? damn :() and you basically have a PC.

the next step of the human race...

Can't wait to become a drone in the Borg collective

What the **** is this ****.

not even close

Exactly