I have finally complied my list of Lion bugs and feature enhancement requests/rollbacks that I'll be submitting to Apple (apple.com/feedback) after my first week with Lion. So far they are: Bugs: -Temperature: Overall system temperature is running much hotter with Lion than with Snow Leopard. Hardware mostly affected: GPU, hard drive, and built-in power supply -Hard drive space mysteriously disappearing, even with very light usage -Some animations are not smooth -Page scrolling is not always smooth and can get choppy with some apps -"Clear" key does not work on Apple Wired Keyboard with number pad -Simply moving a mouse does not wake up the Mac when the display is asleep while the system is idling Enhancement requests: -"Classic mode"/rollback. This includes a not-so iOS looking iCal and Address Book. "Classic Spaces" in Mission Control. -Consistency across UI and appearance. iCal and Address Book being an example, lots of needless "flare" while the rest of the system is grey and simple, both really stand out like sore thumbs -Apps entering Full Screen should simply take over the desktop/space they are currently in rather than adding a new one at the end of the chain -Using the "Escape" key to get out of Full Screen Mode universally across all apps -Mission Control: the ability to rearrange desktops/spaces while in Mission Control -iCal: To be able to select a specific day while in month view (rollback feature). Sidebar showing calendars and mini-calendar (yet another rollback feature). -Auto Save and Restore needs its own System Preference pane to be able to control which apps use the feature -The ability to deactivate Launchpad Anyone else care to add to the list?