> Even "classic 90s" OS's like Windows CE used the pattern of headerbars with a few key widgets that could be easily accessed via touchThat's because it was made from the start for PDAs with touch screens. This is a desktop computer OS, and although I can entertain the notion that someone out there might be smudging a touch screen connected to their Unix workstation, I don't see why everyone else should accommodate this weird and ergonomically unsound input method at the expense of screen estate.
Also, whether they could be easily accessed really depends on the device and input method. Using Pocket PCs without a stylus was certainly no fun.