At $55, the Oxford Deluxe English dictionary and thesaurus is the most expensive app I’ve talked about on the site.Despite the price, it’s a lot cheaper than the paper version of the same two books, and comes with several extra features such as 50000 audio recordings of words to help with pronunciation, a search feature that can interpret what you mean even if your spelling is off etc. Up until now though, the app has been iPhone-only, meaning it will run on the iPad but only with pixel doubling- not the native resolution. It’s still usable- it’s a dictionary after all- but native iPad apps are always better. Last night I was prompted with an update though, and it included native iPad resolution support. This means a new layout to take advantage of the extra screen real estate, and the app now uses a splitscreen view to let you browse a list of words side-by-side with the listing of the word you’re currently looking at. The update doesn’t really change the usefulness of the app in any way, just makes it easier and neater to use on an iPad. That’s the second of my apps to get native iPad support in a week (the first being Carbonite), so I’m thrilled. Even though I am getting an iPad 2, app updates like these two are sometimes more important than hardware updates at this point, at least for me.