GreeterDroid sets important dates of your friends or loved ones and sends a SMS with your message on their special day as if you sent the message yourself
Paperdroid Found an interesting but long article while surfing in a costly internet point? Skimming hastily through your feeds for worthy posts? Just save the page to Read It Later (via bookmarklet, the Firefox extension, etc.) or star it in Google Reader - and have Paperdroid automatically download it to your trusty Android phone for offline reading pleasure
txeet is an application that makes regular texting fun and enjoyable. Compose SMS with over 3000 templates, such as miss-you, jokes, pickup lines, goodnight messages, etc
Enumdroid adds ENUM (E.164 Number Mapping) support to your Android phone.
Each time you dial a full international number (i.e. starting with a '+') your phone will check the DNS for additional routing information and offer you a list of alternate contact methods
Jakizu is an Android application for searching medical services in the Basque Country. You can filter the search results by categories and find depending on your location. It's possible to add comments to a hospital or call there