Kenmore Oasis HE washer: Changes to control panel?

[funguy10]

I think there is a difference between the control panels on the early Kenmore Oasis HE washers from 2005. Here is a list of the cycles on the 2005 Oasis starting from the top going clockwise:

Express Wash
Bulky/Bedding
Darks/Colors
Silk/Delicate
Wool/Handwash
Whitest Whites
Heavy Duty
Normal
Casual/Wrinkle Free

Here they are on a post-2006 Oasis going clockwise starting at the top:

Express Wash
Bulky/Bedding
Sheets/Towels
Dark/Colors
Delicate/Handwash
Whitest Whites
Heavy Duty
Normal
Casual/Wrinkle Free

I would like to know several things:
Why the change?
How did the Wool/Handwash cycle work?
How did the Silk/Delicate cycle work?
How does the new Wool/Handwash cycle work?
Is the Wool/Handwash cycle similar to the 2 old cycles?
Which one is it more similar to?