The iPad is designed for the OS that is on it. Nothing wrong with Android, WinMobile, OSX, Windows, Linux...etc... And there will be devices come out that are built around those OS's.... And there will be many good choices, depending on ones needs and likes.
The iPad is not just hardware, at least 50% of the iPad experience is the software. If someone does not like that experience, the smart thing to do is get a different device. I originally was interested in the MS Courier. My wife wanted an iPad, and once in the store I decided to give one a two week trial. I figured the $50 restocking fee would be worth it just so I would know..... Well two months later, and there is no way I would give it up
. But, if after a week it didn't fit me, I would have taken it back. There are plenty of good options on the way, and that's a good thing for all!