With these newfangled digital readouts, will the analog display become obsolete?
No! The analog clock face is a display method. It will never become obsolete.
An analog display can tell you at a glance WHERE a value is, a digital display can only tell you WHAT the value is.
The human brain can process information from analog displays far quicker than digital displays.
Even though the underlying information-feed spews out of an embedded digital system,
primary automotive, aviation and marine instrument panels are largely analog.
Secondary instruments may be digital.
Example: Modern All-electronic Cockpit of an Airbus A320. 
Primary Flight Display (PFD) 
Standby Airspeed and Altimeter 
The exception is only in the rare case where, the range of data is too great to be put on an analog display.
The purpose of the information provided by the analog displays is primarily a status indication. "Is everything OK or within acceptable limits?" Analog displays can tell you that at a glance.
On the other hand, a digital display requires that you do a mental sanity check against min. and max. allowable readings.
The world tends to be logarithmic (and log-normal) and multiplicative — rather than additive.
That is why Microsoft Excel has a charts feature!
I close by asking you all Team-BHPians. Look at this display and see how it gives a sense of your life running away!!
http://home.tiscali.nl/annejan/swf/timeline.swf
Ram