Which VCSes have "uncommit"?

[Daniel Carrera]

Hello,

Does anyone know which distributed VCSes have an "uncommit" feature at 
least as powerful and at least as easy as the one from Bazaar? The only 
examples I know are Bazaar and Darcs ("darcs unrecord").

I get the impression that Mercurial and Git can use "rebase" to achieve 
this, but that this is more complicated. So they would meet the "at 
least as powerful" criterion but not the "at least as easy" criterion.

Thanks,
Daniel.