Maintaing compatibility with existing Windows applications is neither innovative nor the best thing for the consumers. There are times when new thinking is necessary and this is one of them. Apple decided this was the right thing to do when they introduced the iDevices and did not make them compatible with MacOS apps. Obviously that vision was right. The problem with Android and RIM and WebOS is that they have nothing new to add to this vision They are at best a cheap copy which unfortunately cannot seem to match Apple in price. We have to see if Windows 8 will be the big savior os MS - but I would not hold out for that - we saw their vision with Windows phones (the original not 7)
I suggest you got back and look at the WebOS tablet HP is preparing, it has some very neat features which work their phones and tablet market. Plus WebOS being on every device HP sells is something no one else seems to be interested in creating. I think HP with WebOS and Palm working for them has a lot of potential. I'lll be keeping an eye on those devices as well.
But OS X does keep me tied to Apple. Just enjoy it much more then Windows which HP depends on.