I did some searching and found that the iPad has a history of trouble with dropdowns... Is it just the dropdown menus that are missing? Are the buttons that say "Get Breeding Results" and "Get Potential Pairings" still there?
Mine has been fine since I posted last that it was rocking again, but to answer your question, no, the buttons were gone in addition to the dropdowns... I have not ever had a problem with dropdowns of any kind except his one...
I finally managed to borrow an iPad to see what was going on. One of the problems seems to be Safari hating some keywords that I *had* to use as a workaround for MediaWiki's dumb caching slowness. Will anyone who cannot use the calculator on their device please test for me if it works on a different browser such as Chrome? (You'd need to visit the App Store to download apps for Chrome, Opera, etc.) The Chrome one is free but requires iOS 5.
I'm using Safari on the computer right now but the calculator works perfectly on it, unlike Safari on the iPad, which is on iOS 4. I'm wondering if an update to iOS 5 would fix it. Please let me know what iOS version you are on with Settings -> General -> About and giving me all the numbers etc. that the "Version" row displays.