Apple needs to do a lot more than just add app library support. They need to rethink the whole concept for iPad. Right now, if I want to open another app (that I haven’t launched recently) to run concurrently on the side, I have to jump through hoops. Moreover, the whole multi-windowing system is not very conducive to a smooth workflow nor is it intuitive. They need to take a holistic view to fix both issues.
As for widgets, I’m OK with widgets on the side. Widgets were a little more useful when launching apps took a long time, but most apps I use launch near instantaneously on my iPad so most widgets are useless, especially considering that they’re not always up to date... stocks, for example.
I’d like to see weather and calculator apps on iPad.