I have also sent out my feedback on the Touch. This device could be just as revolutionary as the iPod was years ago. I believe that we will see more features from Apple right before the release or shortly there after. They wouldn't have all that extra room on the home screen unless they already had a desire to fill it in the future. Also I would be willing to bet that they are going to keep a close hold on the iPhone and iPod Touch for a while, but not to dictate what you can and cannot have on your device, but to allow them time to work out the bugs and then once they have done that then it will be opened up to developers. I for one will be one that will drool over the nice new 3rd party hacks that will come out, but I will hold off because I don't want to brick my nice shiny iPod Touch.
Christopher
Christopher