I found this at the asus support site.
http://www.asus.com.tw/support/faq/q...B_ID=100092099
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Why can't I access A730W Automatic Power Saving Mode?
In order to increase WiFi performance, "Automatic Power Saving Mode" will be disabled automatically in A730W.
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So the feature appears to be available prior to the ROM upgrade, but updating appears to disable this feature in the interest of WiFi compatability. However, asuspocketpcw reported still being able to use the feature after upgrading. Does anybody have an idea as to why my device would be different? After installing Pocket Hack Master it's really only a minor annoyance, but I still wish everything worked like it should.