Based on the discussions I've had with other iPhone developers the one problem you won't have is a lack of "designed for iPad" apps. There will be a lag as App

Based on the discussions I've had with other iPhone developers the one problem you won't have is a lack of "designed for iPad" apps. There will be a lag as Apple isn't allowing "garden-variety" developers to submit iPad apps before they are tested on real hardware (and no we don't get our hands on any before anyone else) so expect there to be a couple of weeks before the flood hits the app store. The other item I'll comment on is app cost. Given that the iPad version of "Pages" will be about $10 (and from what we've seen it's definitely at the high-end of the quality scale) I wouldn't expect a significant difference in price compared to existing (quality) iPhone apps. This may change with time however.