How, exactly, do you propose this to be possible?
I'm not sure how it'll be possible, but it will be a great feature. I mean, we can make phone calls to any number on any carrier, so why not be able to have facetime with any line on any carrier also? That would be amazing.
Customization of apps has nothing to do with Apple and everything to do with the app creators.
Why do you need Widgets? What do you want them to do that isn't already done? How would they be implemented over the already busy Home screens?
This isn't practical.
Do I look like a ****in software developer or an Apple employee? no. I don't know how it would be done, but it would be a nice feature. The droids got widgets, and they're able to make their widgets be any size with any photo. The iMacs and MacBooks have widgets, so the iPhone/iPod/iPad should also. It would be a great feature, and would really compete with the android market after having these upgrades.