Multi tasking the ' Floris ' way.
Instead of the app sliding up, revealing the apps row below the dock, I rather see the app shrink down. That way you can just slide between them, with a bit of a preview of the app in front and behind it. This will work wonderfully especially on the iPad.
Secondly, if you hold 1 app that's active, and touch another app that's active. It adds a 'pane' in the first active app. So when you're in the app you can switch between the app's control-options just by swiping to the right. Somewhat how many apps currently disclose their app settings.
This would be great for reading 1 thing, copy pasting to an editor, and having an overview of data available to you from both apps. Rather than going through pressing home button a bunch of times, switching the apps in full in and out of memory active state, and individually copy pasting things, etc. This gives a bit more 'overview' and fake ' screen estate '.
Additionally I just want the ability that if you are in a home screen and there's a group, and you touch another group. That the first group collapses and auto expands the other group. I hate having to touch the screen 4x just to close one and open the other, then the app, etc.
One more thing
The clock app ^_^ on iPad.
Ok, really: one more thing. I wish Apple (as annoying as it is with its rules) would 'force' or rather 'require' applications for the iPhone that work on the iPad to adapt to the iPad screen. So any iOS6 iPhone app won't be a no-landscape no-modern-keyboard and no-scale-to-screen app. An update to the end user would give them a working app (and indirectly, forcing developers to finally get rid of those stupid and ugly, low quality outdated iPhone only apps that work on iPad) that's using great fonts, great images, scales to the full screen, works in landscape mode, and doesn't make the iPad apps feel like they're 5 years old.