Been using the Single App Mode hack on my MacBook Air the last few days and I love it.
I’ve actually tried it last year, but it wasn’t until my current anti-multitasking phase —brought on by the iPad mostly– that I really got the point of how this could be useful.
The thing to remember is that this option only takes effect when you click the app’s icon on the Dock. This will hide all other application windows.
However, if you
command-tab, then you get your typical overlapping windows
Give it try, at least on the MBA’s small screen, it now makes much more sense.