What are these "many applications" ??

It's written "The title should ideally be less than 64 characters in
length. That is, many applications will display document titles in window
titles, menus, etc where there is only limited room."
http://www.w3.org/Provider/Style/TITLE.html

So what are these "many applications" to consider??

The browse tabs today any way start reducing with size as soon as we start
opening more pages... and even the 64 starts to look bigger and the
complete title hardly appear any more... menu items are never as long as 64
characters.

So, what is applicable considering the current perspective.

-- 
Sincerely,
Ganesh J. Acharya
http://seashell.co.in