Emacs in a Chrome Tab? (related to NaCl Support for Emacs discussion)

[Paul Michael Reilly <pmr@pajato.com>]

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My curiosity peaked recently with the thread on NaCl support for Emacs.
 Not having a clue what NaCl was all about, I took to Google to find out
more.  And if I read it right, it is all about having a HTML/Javascript/CSS
wrapper around a C/C++ native code application running in the browser.
 Very cool in its own right but simply awesome if that wrapped code happens
to be Emacs.  The NaCl Support for Emacs discussion seems to be focused on
security/library  (crypto) issues which tend to make my brain hurt so a new
thread seems appropriate to discuss this notion of Emacs running in a
Chrome tab.  For all I know the current NaCl thread might be a totally
different NaCl thing than NativeClient.

I raised this issue last year (Emacs in the Cloud) but I don't recollect
any mention of NativeClient at that time.  The notion of opening up a new
machine, installing Chrome (if it is not already installed), heading off to
the Chrome Web Store to get the latest NaCl version of Gnu Emacs, and then
using an Emacs tab to edit files/run shells/install ELPA packages is very
appealing to me.

Is anyone aware of technical "gotchas" that make this notion unrealizable
by a mere mortal in just one lifetime?

-pmr

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