docs/TODO: remove finished items, update descriptions for remaining items

TODO

@@ -4,35 +4,32 @@ Recuring tasks:
 
 - update versions for every tools...
 
+- update and/or upgrade all samples
 
-Non-recurring tasks:
-
-- build our own versions for (minimum versions):
-    m4          1.4.12
-    autoconf    2.63
-    automake    1.10.2
-    libtool     2.2.4
 
-- uClinux
+Non-recurring tasks:
 
-- add newlib (for enhanced bare metal)
-  - may need heavy tweaks and bends in gcc.sh
+- update newlib (for enhanced bare metal)
+  - confirm existing implementation on targets other than AVR32
   - try to make it generic, will help for uClibc++
-  - check whether it supports running under uClinux
 
-- uClibc++
-  - see newlib, above
+- multilib
 
 - Cygwin target (needs newlib)
-  - so we can complie for Windows/Cygwin
+  - so we can build toolchains that generate code for Windows/Cygwin
+
+- Cygwin host
+  - so we can build toolchains that run natively under Windows/Cygwin
 
 - mingw32 target
-  - so we can compile for Windows/Win32
+  - so we can build toolchains that generate code for Windows/Win32
 
 - mingw32 host
-  - so we can run natively under Windows/Win32 (without requiring Cygwin)
+  - so we can build toolchains that run natively under Windows/Win32
+    (without requiring Cygwin)
 
-- eglibc config file
-  - see: http://sourceware.org/ml/crossgcc/2009-05/msg00022.html
+- uClibc++
+  - see newlib, above
 
-- multilib
+- uClinux
+  - check whether we can use newlib under uClinux (?)