I'm retired, so I'm strictly a home user; but there is no way I will abandon my computers until mobile devices (with docks) can match the power, expandability and upgradeability I enjoy now. I'm using a notebook -- with a mouse -- right now, and later I'll do a few things on my more powerful and better-equipped tower desktop machine. At bedtime I'll switch to my Kindle Fire for a little reading before I go to sleep.

For me, today, a cellphone (just a featurephone, btw) is all I need. For anything more than a one-person business though, I'd still want both corded and cordless landline phones -- muliti-line, with all the traditional office phone features -- along with cellphones for employees who work "on the floor" or outside the office environment.