Welcome to the AndroidForums, tumbleweed1949!
Yeah, +1 to what Lunatic said.
I've got two apps on the Market myself and am still figuring out how to accomplish those two things (resizing and handling orientation changes). I want to make sure that I don't break things for my users on the older phones since my apps work on any Android 1.5 and up. But the new tablets use many new Honeycomb 3.x APIs that aren't supported by the older phones.
Anyway, chances are that eventually you'll get an update or there'll be a tablet-specific version of the app for your device, just keep checking the Market and the other apps by the developer.
Cheers!