I thought I'd let this simmer a while on the hg list, but here's a 
little snippet:

Ian Pratt wrote:
>>>It's just annoying that it currently lacks renames
>>
>>I wonder how hard it would be to get these added.  Guess I'll 
>>have to talk with Matt ;)
> 
> Because of the way we use renames when doing linux version upgrades it
> would be really useful to get this added.

Matt Mackall wrote:
 > Well someone can relay to them that rename support should happen very
 > soon. I'm still not convinced of the value of per-file checkins (if
 > you need per-file checkins, your commits are too big) but I'm not
 > completely immune to reason.


-- 
Andrew Thompson
http://aktzero.com/