Lots of nice upgrades have landed in sid in the last week. GTK+ 2.24.3 has been packaged. At some point in time this created quite a dependency hell, but it was resolved only a few hours later. GMP library has been upgraded to 5.0.1, everything OK. There are new minor upgrades of gcc, qt4, php5, apache2, postfix, policykit and lots of other stuff, too numerous to mention. LibreOffice is up to 3.3.2, and has been working very well since the switch from OpenOffice.org. xserver-xorg-core is at 1.9.5.
I also noticed that iceweasel 4.0 final has landed in experimental, and that finally prompted me to add experimental (and remove mozilla.debian.net) to /etc/apt/source.list. Iceweasel 4.0 is great, much faster than 3.5 and except some minor plugin instability, very robust. I still keep flash plugin at 10.1.102.64 to make it stable. I also noticed that Adobe's PDF plugin (nppdf from mozilla-acroread 9.4.2 package) silently crashes from time to time, but simple page reload solves that most of the time. Other than that, Iceweasel 4.0 really shines, Mozilla has done a great work on the new version of their browser.
Just today, libcairo2 1.10.2-5 arrived. Unfortunately, it still doesn't resolve slowdown with my Nvidia card and accompanying binary blob (270.30), so manual downgrade is still in effect. The changelog says OpenGL/EGL backend is temporarily disabled, but that didn't have any effect on my issues with new versions of libcairo2.
Unfortunately, I don't see which new packages entered the repository anymore, so can't report on them. I'm really sorry about that.