[MEXT] [dmm?] Surprising assertion about make-before-break handover prevalance

Hello folks,

Sorry if this is considered to be imperfectly relevant,
but I'm curious whether or not handovers in the future
would be typically make-before-break.  Or [even "worse"],
in terms of radio interfaces, whether typically wireless
devices in the future will keep multiple radios powered
on all the time.

This might well have an impact on assumptions about
dmm.  It was claimed that, for instance, iPad and iPhone
usually have both interfaces active.  I know that when
I'm using my iPad I do not keep both radios turned on,
but I do not claim to be a typical user, and anyway I
do not have an iPhone.

Comments will be appreciated!

Regards,
Charlie P.