Why is it that people think that just because they bought an iPhone, iPod or iPad developers have to give away their apps for free? Would you do your job for free?
If you already have the iPhone version and don't want to pay for the iPad version of the same software, then put the iPhone version on the iPad, it will work. All the apps I've seen so far in the App Store have screenshots (in fact up to 5 screenshots) of what the app looks like on the iPad. If you don't think the higher rsolution and/or extra stuff is worth buying the app again then don't buy it again.
I don't have my iPad yet since it won't be released until late April with 3G, but I already know what apps I will purchase again because of the extra screen real estate and information this extra space will have. I, for one, don't mind paying again for a product on new platform if I think it is a good product. So far I have bought Splash ID 3 different times, first on a Palm, then Windows and again for the iPhone. I've also done the same with Bejeweled 2 (Palm, Win Mobile, iPhone), Pocket Informant (WinMo, iPhone), Documents to Go (Palm, WinMo and iPhone) as well as several others.
If an application has value to me, then I don't mind paying for the app or it's upgrades. That is why I buy upgrades to Windows, MacOS, MSOffice, and several other programs I use when those upgrades are available. One case in point would be Franklin Covey's Plan Plus for Outlook. I've been using this program since it was in beta version and now version 7 just came out. I upgraded this application every year and I did not hesitate to get the upgrade to version 7.
I don't know, I just don't get why computer users seem to think every app that you have to pay for is no good or why they think they should get all their apps for free.
end rant.