Bah, screw you all. At work I'm using dumb terminals on Unix boxes that are too old to even have bash in a default install. Multitasking? It's whatever creative input/file redirection I can come up with or how fast I can write stuff down with pen and paper from vi.
Anyway, more to the OP. I use Irix, Unix, OS X, and Windows daily. For the most part, with Windows 7 and OS 10.6, it's mostly a moot point in terms of window management as far as my workflow is concerned. To use Expose I need to either do a two handed shortcut combo or move my hand to use a gesture, or Cmd-Tab. On Windows I can natively get kinda-sorta Expose functionality by holding down Alt-tab and clicking whatever window/program I want to change to or button mash Alt-Tab. So, same amount of movement for me.
Launching programs is identical in both OS X and Windows for me. OSX: Cmd+spacebar, type in part of the program name, press enter. Windows: Windows key, type in part of the program name, press enter. I haven't looked in the start menu programs list in years on a non Windows XP box unless I forgot what I had installed. Ditto on OSX -- I have an alias to my Applications folder on the dock, but only open it when I forget the name of a program.
Hrm, now that I think of it, I could use the spotlight metadatafield on the application to set up tags. Instead of looking for a program by name, I could look for it by what it does. Well, in theroy. I'm not near my MBP right now.
Aero peek functions the same way as showing the desktop on OS X - Winkey+spacebar. Or Windows+D if I wanna actually minimize everything. Press again to restore. I think there's an equivalent in OS X, but not sure offhand.
Aerosnap is pretty handy, but can be replicated on OS X with third party programs. Just like Expose and spaces can be duplicated on Windows with third party programs. And Linux can use compiz and make your windows slide around a three dimensional cube so you wind up chasing them down to catch them with the mouse (it's curling but with windows).
Some things are a bit miffy in Windows, such as file exclusion locks preventing renaming. Quicklook is a nice feature in OSX that I don't utilize enough of. Though I can't say -- personally -- that I've really come across an instance where quicklook would save me time. But that's just me.
Anyway. Gist of it is that with Windows 7 or OSX 10.6 or many flavors of Linus you can have whatever type of window management or workflow experience you want. I haven't used 10.7, 10.8, or Windows 8 so I can't say for those.
Is there an OSX equivalent of this?
Set up an automator script to monitor your desktop for the file name format that OS X uses for the screenshots. Or if you're lazy, use it to look for PNG's on your desktop and move 'em.