This is a somewhat ordered TODO list:

 Recuring tasks:

 - update versions for every tools...

 Non-recurring:

 - gcc-4.4

   - requires some companion libs:

     - PPL

     - CLooG

     - MPC

   - check that the patchset from 4.3.3 still applies

 - uClinux

 - add newlib (for enhanced bare metal)

   - may need heavy tweaks and bends in gcc.sh

   - try to make it generic, will help for uClibc++

   - check whether it supports running under uClinux

 - uClibc++

   - see newlib, above

 - Cygwin target (needs newlib)

   - so we can complie for Windows/Cygwin

 - mingw32 target

   - so we can compile for Windows/Win32

 - mingw32 host

   - so we can run natively under Windows/Win32 (without requiring Cygwin)

 - eglibc config file

   - see: http://sourceware.org/ml/crossgcc/2009-05/msg00022.html

 - multilib