Wheezy is frozen and due for release early next year. However, if you know
Debian, you know the freeze of Testing is more stable than a typical Adbuntu
release.
If you need a more recent kernel on Debian, there is always backports. I
think the present kernel in Squeeze backports is 3.2. However, I don't know
if the libre kernels have options to replace the Debian stable backports
kernel.
As far as going from Stable to Sid, or even from Stable to Testing, there is
a script available which is extremely helpful named smxi. WARNING: Smxi does
make non-free software easily available, since it has the capability to add
contrib and non-free repositories. I never used that part of the script
though, because I kept a totally free system on Debian. (It would be VERY
cool if someone took the smxi script, then purged all of the references to
contrib or non-free software.)
Smxi can check packages due to be upgraded, yet automatically refuse to
upgrade any packages that will cause problems. So if there are two
conflicting versions of X working through Sid, smxi will not upgrade to new
apps or libraries that would cause X not to load post upgrade. When I was on
Debian, smxi was the only tool I used for upgrades, even though I was running
Stable. It works just as well on Testing or Sid though.
Also, I am VERY excited about gNS 3.0. I thought the project was dead until I
nosed around the website a few days ago. Are they planning on having an amd64
version? I LOVE to see more all free distros. More free distros = more users
who insist on free software. My hope is that leads to businesses seeing a
large market they will want to exploit, with more free drivers, etc. gNS 3.0
with a 100% free smxi script would be a dream.
