fast&easy taskbar

EDIT: OK, Would someone voting this down take the time and tell how it is a daft idea. Is there a good way to switch between- and managing tasks that I'm not aware? It's not like it'd take anything away from people who like their taskbar as it is, but anyways, please take your time and explain me why mentioned functionality is not a good idea. Thank you!

alt+tab type of taskbar that would pop up where your cursor is when (for example) windows-key is held and disappear at unhold. Additionally window could move with the cursor at boundaries for easy placement out of the way.

New (additional) taskbar would have the same functionality as normal taskbar; minimize/maximize with graphical clues,right click-menu with the added benefit to show windows from all desktops divided with separators, or if there\\\'s plenty, in their own sub-menus, with functionality to drag&drop tasks from desktop to another.

Anyways, just food for thought about a quick access, roomy taskbar that doesn't clutter or hog space from desktop. Sorry about the non-informative screenshot, I can only hope the explanation helps :) In case anyone likes the idea and has the ability to make better mock-up of off it, feel free to!