TightWind is written by Kyle Baxter. Stay Hungry. Stay Foolish.

Lukas Mathis doesn’t find iPhone OS 4′s task switcher is necessary:

I’m not convinced that the task switcher needs to exist. Since apps in the task switcher aren’t really running, the task switcher isn’t so much a task switcher as it is a list of recently used apps. That might make some sense if you could actually see the state of the applications in the task switcher user interface, but all you see is a row of icons.

For this reason, he suspects users won’t ever use the task switcher.

I think that’s wrong. The task switcher is, effectively, a list of recently-used applications. That’s actually pretty useful, though; most of the time, I use a small list of applications and just switch between them. Switching between them by double-pressing the home button is a much easier than moving between several pages of applications. It’s like Command-Tab for the iPhone.

My only complaint, though, is giving up double-pressing the home button as a shortcut to my phone favorites. That’s something I use daily.