[Android Software/Hacking General [Developers Only]] codesplice:
Clutch Pad[APP]

App Name: Clutch Pad (v.1.3v.1.4.2, @AppBrain)

Developer: stevealbright

Price: $0.99 $1.99

Clutch is an application that seeks to optimize and streamline the way you multitask on Android. It is currently in beta status, but is very functional in its current state. It is a powerful supplement to the built-in Recent Apps feature.

Clutch manifests itself as a small semi-transparent "trigger" area, which functions similar to "hot corners" on a Mac (I think. I'm a Linux/PC guy). This small region rides at the very top layer of the Android interface (in a user-configurable position) and is accessible no matter what application you may be working in. You can tap this region to instantly bring up a small grid displaying your recently-accessed applications. You can customize how many apps you want to be visible, configure the application to ignore your Home (Launcher) app in its list, and to visually distinguish currently-running applications from terminated apps. This makes it very easy to quickly determine if that app you just exited is still running or if it has been shut down as it should, as well as providing a quick (and lightweight) task switcher.

Nice, but nothing terribly fantastic. Yet. Clutch also has configurable swipe gestures - the most useful (to me) of which is a Last Task functionality. For instance, if I Swipe Up from the Clutch region, I instantly switch to whatever my previous app was. If I swipe again, I am moved back to the app I just switched from. This functions similarly to just pressing ALT+TAB quickly, and is very useful for quickly jumping between two apps.

This little utility is quick and lightweight, and I have found it to be extremely useful. It is still in development, and has many more features planned (and a price increase to accompany them - so get it quickly!) including support for additional gestures (open/close notifications, for example), on-click task control (press-and-hold to kill, for example), and configurable transition animations.

If you've got a dollar to spend, you would do well to add this application to your device in its current state, and I can only imagine the app's versatility and usefulness will increase with the further planned updates.

Update (2/24/11): Clutch Pad has recently been updated to version 1.4. With this update, the application has dropped the "Beta" tag, gained an additional "Pad" in its name, and has added additional features and configurable options. At the same time, the price has also been increased to $1.99. New features include additional swipe gestures, configurable transition animations (that are quite pretty), the option to toggle the trigger button via a press-and-hold on the Search hardware key, and a Favorites option to quickly launch your favorite apps. Options have also been added for additional visual tweaks and adjustments of both the trigger icon and the popup lists, and all known bugs have been fixed. With each incremental update, this app gets more and more useful and I find myself relying upon it more all the time. Even at the increased price, this is still one of my must-have applications.

Verdict: An innovative way to access recent apps, and the Last App gesture functionality is every bit as useful as Alt-Tabbing between apps on your desktop.

Screenshots:

1) Trigger icon

2) Recent apps list

3-5) Settings pages

(tested on NexusOne / Kang-o-rama 1.2 T1 (CM7.n13 / GRH78C / Android 2.3.2))