JFFS1 vs JFFS2 compatibility

[Mike Wellington]

Hi-
  I know some guys who have JFFS v1 running on their Linux platform.

They want to know what (if anything) is liable to break when they
try to go to JFFS2.

  They don't do anything fancy, just simple file operations 
(open, write, close).

I told them there should be no problem, but they still
want me to ask you experts.

-mike wellington
 mike at bithead.com