sacks for the tablet interface

Instead of user accounts to organize a tablet interface (as I mentioned in May)  it might be good if, when I turned on my iPad, I saw an icon of a sack, labelled "Margie's", and there'd be other sacks for the other people using the iPad.  The same app could be in several sacks.  The apps we most often use could still be splayed out, or in their "most often used" sack.

There should be a way to tell the iPad to put all the music stuff in a Music Sack, and, more specifically, to put all the ukulele apps in an Uke Sack.  All the kids' games should be in a sack, instead of cluttering up my view.  All the News Readers (Huffington, NYT, ABC, etc) should find their own sack for when I want to read a magazine or check the news.  Apps are very easily categorized, and they should be thus self-organizing.

My kids have downloaded a lot of games and I am tired of sifting through them all to find my stuff.  It is awkward to drag things to the bottom and then pull them out on the screen where I want them.  Just let the iPad organize this for me.  Why can't it?

As for email, if the user sack most recently opened was "Margie's sack", it would be nice, when I click on email, to get one of my email accounts, instead of Zoe's.  And vice-versa for "Zoe's sack".  Although, as her mom, it is good that I can read her mail.