Some of these widget ideas are fantastic, but a few should be, I feel, applications rather than desktop widgets. E.g. the location-triggered alarms could just be an app that runs in the background (which I assume is possible), and a separate app to configure it. Most of the time it would keep itself out of the way. I'm not sure what use it would be as an always-present desktop widget. What would it display? Similarly the text-to-speech idea...

Maybe we need a separate thread for app ideas.