The power off/reboot/shut-down options are well-intended, but should not have been on by default...a cardinal rule in electronics device design is that you don't enable options to reboot/shut-down the device that aren't either 1) Clearly labeled/standard implementations that users are familiar with, or 2) Fail-safed by an "Are you sure" prompt. The hidden key options aren't a bad idea, and some love them, they just should not have been on by default.
Same w/the install all apps to SD setting...Auto would have been the best default, the more aggressive "all apps" setting should have been a selectable option for those who wish to deal w/the greater potential for difficulties with that setting.
The best software/hardware designers/developers I work with are always seeking out noobs, people with limited exposure/familiarity with their industry to test designs...the definition of great design is that you don't assume your users have to be smart to use your product. You assume the product is smart enough to enable almost anyone to use it.