It's basically a list of apps on a home screen. You click on the apps, they open and perform their function, and that is the end of the story. The iPad it's self, like a super nintendo, is nothing without apps (if you include the built in apps, it literally doesn't do ANYTHING without apps). So in that sense it's more like a game boy than a computer. It needs to evolve to have an 'active' home screen, much like the one shown on the demo video for android honeycomb. It needs widgets or some other sort of information hub available without opening up an app to give it more of a compute feel. Now android 2.2 can have these, but they aren't optimized for a tablet format. Perhaps apples new mission control feature for OS X lion would be a good type of thing to really bring the iPad experience together and make it more coherent like a multitasking computer, and less fragmented like a gameboy. If you had a screen where you could see open apps, frequently run apps, weather/facebook/twitter/financial widgets, etc... and use that to spring to whatever type of computing you want to do, would be great.
The main reason why android is a much better experience as a phone than iOS is because of their drop down notification menu (download/install progress, update notifications, email, text, phone call notifications, toggles for gps/wifi, etc...) and their live widgets. Having a calendar widget, weather widget, news widget, facebook widget, and twitter widget makes me phone experience awesome. At a quick glance from my pocket I can get updates on ALL of those things, instead of having to open a half dozen apps on the iphone/ipad to get them (no matter what way you argue that is NOT convenient and would take a much longer time to do). Now if you're on a tablet I think the notification bar is less important, but the widget type things are much more important.