arrayType vs. typedArrayType?

[tobiah]

I hope no one minds my trying my question again in a more
concise way:

Using SOAPpy call, if I return [[1,2],[3,4]] from the server,
I get back:

<SOAPpy.Types.typedArrayType v1 at -1212627124>: ['1', '2', '3', '4']

typedArrayType, and it flattened out my list of lists.

But if I add some other type to the array: [1,[1,2],[3,4]] I get
back something more useful:

<SOAPpy.Types.arrayType v1 at -1213012916>: [1, [1, 2], [3, 4]]

What gives?

Thanks,

Toby