Recorda la llet
Remember The Milk is a very nice service, which i started using today. It is available in many languages—English, Russian, Japanese, Latvian. Not in Hebrew, but that’s probably understandable—Hebrew has right-to-left issues in addition to the translation itself. It is available in Bosnian, but not in Serbian or Croatian, which is weird, but whatever.
But the weirdest thing is that it has no Catalan translation. Usually Catalan is one of the first languages to which websites and program that accept translations are translated.