New C files in 2.x are using 4-space indents, too.

pep-0007.txt

@@ -47,7 +47,8 @@ C dialect
 Code lay-out
 
     - Use single-tab indents, where a tab is worth 8 spaces.
-      (For Python 3000, see the section Python 3000 below.)
+      (For Python 3000 and entirely new source files, see the section
+      Python 3000 below.)
 
     - No line should be longer than 79 characters.  If this and the
       previous rule together don't give you enough room to code, your
@@ -195,9 +196,9 @@ Documentation Strings
 
 Python 3000
 
-    In Python 3000, we'll switch to a different indentation style:
-    4 spaces per indent, all spaces (no tabs in any file).  The
-    rest will remain the same.
+    In Python 3000 (and in the 2.x series, in new source files),
+    we'll switch to a different indentation style: 4 spaces per indent,
+    all spaces (no tabs in any file).  The rest will remain the same.
 
 
 References