Application level switching makes sense to me when you are working using "one app, one task." Switching from my IDE to chat...? sure bring up my both contacts l

Application level switching makes sense to me when you are working using "one app, one task." Switching from my IDE to chat...? sure bring up my both contacts list and chat window. But a power user is probably using more than one app per task, and is multitasking (or whose task requires many separate subtasks), and of course some of the apps are used in multiple tasks. It would increase productivity if I could easily bring up the windows I'm using for task a, and switch easily to the windows I'm using for task b, even if textmate and a terminal are in use in both tasks. Yeah yeah, we have spaces... the point is that, for me, while purely window-level switching is a poor solution, app level switching is both a poor and often actually anti-productive solution. (I, also, am a longtime windows user now using os x. That's definitely a factor, here)