In the next day or two I plan to submit two changes:

1.  Make the "flip?" argument to array-reverse optional.  If it's not
given, it defaults to all #t, i.e., flip all axes.  This is a useful
default.

2.  Introduce array-rotate, which rotates the axes.  This is a special
case of array-permute, but it seems useful to have it.

Brad

PS:  I don't plan to submit future comments to the SRFI-122 mail list,
so perhaps people who are still interested can subscribe to the SRFI-179
mail list.