Not being able to offer the same discounted upgrade pricing to all our customers no matter where they purchased is obviously disappointing for us. But it just means we're back to the same state of affairs as I outlined in my original blog post from the launch of the Mac App Store:

http://www.omnigroup.com/blog/entry/mac_app_store_or_omnis_o...

As I said in that original post:

"The Mac App Store is the most convenient way to buy our software, letting you purchase, download, and install our apps with just one step, and easily update our apps at the same time as you update other apps you've purchased from the the store.

"But to be clear, the Mac App Store is not the only way to buy our software: we'll continue to offer direct sales and updates through our own website as well. Through our website, we can offer much more flexible terms and options: trial and beta downloads, upgrade pricing, and discounts for volume, bundle, and educational purchases.

"No matter which way you buy our software, you'll be getting the same product: all of our Mac App Store apps are exactly the same as the apps we sell through our website (except for a few minor changes made to work with the store). We'll also keep future updates to our apps in sync—apps you've purchased directly through us will continue to update themselves as they always have, while App Store updates will appear on the App Store (after a slight delay due to the App Store's review process). And either way, you'll have the same great support from our team here at Omni."