The current planned primary method of task-switching, Alt-Tab, is not easily discoverable for new computer users (I am thinking more of elderly people than young) and is inaccessible to people with physical disabilities who have reduced dexterity.  The GnomeShell should provide *some* intuitive method of window switching other than going back into the Overview, which ideally should be visible at all times from within any given workspace.  Ideally, the solution would have an obvious graphical indication of functionality.

Currently, the basic functionality of Alt-Tab as a window switcher is very similar conceptually to the dual-axis window-managing method employed by the Windows7 taskbar, except for the added dimension of other workspaces.

Could Gnomeshell make the functionality of Alt-Tab accessible from some on-screen visible que, and be discoverable by clicking? Say like using the Active Application Item as an app-switcher button?  What about having the entire top panel slide/drop down to reveal a task switcher in the space above, like on Android smartphones.  Another approach would be showing all the open applications as Active Application Items on the top bar, but have them be mostly overlapping each other’s icons, like an accordion layout.  The Win7 engineering blog suggested that most people don’t open enough different apps to fill up the space before hitting the clock.  I am just thinking out loud...