Using the Apple Wireless Keyboard with an iPad with PC/Mac-like keyboard commands I have jailbroken iPad 2 (iOS5.1.1) and an Apple wireless Bluetooth keyboard that I use for typing on the iPad. Although the keyboard is a joy to use, I can't use it for much else other than typing documents and creating notes.

I'd like to be able to use some kind of keyboard shortcuts to move around/switch between apps, use shortcuts like Cmd + K or Ctrl + K in the browser and so on.

Is this somehow possible? And if so how?
BeeKeyboard is a tweak available via Cydia that adds the ability to create custom keyboard shortcuts. I'm not sure if it can do app-switching shortcuts, but you can install a plugin called BeeSafari to add some browser shortcuts.