palladin9479 :
And I'm telling you there is no smartphone docking solution right now that remotely replaces a desktop. Samsung's been working on several for awhile now and they just never work right. Cellphone hardware is really weak, we don't notice it because with such a limited interface there isn't much for it to do. The moment you try to go multi-task it really slows down, neither Android nor iOS is capable of preemptive multi-tasking which is a requirement for Office Automation work. Windows RT is a wildcard as the NT kernel used can technically do that, though there haven't been any solid platforms made to do that.
So it's primarily a software issue not hardware issue. No one said it's perfect. Yes it's considerably weaker than a desktop but people live with those limitation for the convenience of mobility. Desktop PCs didn't use to be preemptive multitasking either but business still ran. I had the privileged of running Windows 3.1.
Ubuntu seems to be doing a good job of adding better multitasking. It may not be 100% there yet but the mobile platform will continue to improve as the compute power goes up. The tricks for dock/undocked profiles is moving into phones/tablets.
http://www.ubuntu.com/phone/design
From what I've read Android 4.2 has preemptive multitasking.