I certainly hope not! I'm a musician, and I have yet to see anything on Android that would draw me away from using a decently-powered computer and desktop. Also, it seems to me that there is still 'way too much hardware fragmentation in the Android world; in the desktop world, I can install almost any OS I want on almost any Intel-based system, whereas in Android, with very few exceptions, I can install only the Android I was given by the manufacturer if they even bother to produce one at all, or just throw the thing away if the Android on it fails for some reason.
Also, I'm appalled at the immaturity of some of the Android software I have seen, and amazed that anyone would *charge money* for it!
Then there's the keyboard-and-mouse issue. Sure, it's fun to swipe a finger around, and some people may find it easy and interesting to type on a "virtual keyboard," but let's see a typist go at 100+ WPM on one of those things, *without looking at that virtual keyboard.* There needs to be consistent, mature support for both keyboard and mouse in Androad.
Until all of these problems are addressed, I'm here at the Linux desktop, where I can get some work done. Then I'll go to my Android tablet and curl up with a good book...