Thanks for all the comments. I think I'll try Siri in a front pocket. Kind of wondering if I could put a small Bluetooth mic on my handlebars...I'll look into that.

The "brilliant ideas" might be hyperbole, but I often do think of things I need to do at home or work. Sometimes I do have pretty legit ideas about how to tackle a work task. These ideas usually come when I'm bike commuting (on mostly separated bike path or quiet road). I'd rather not stop, but a phone could probably pick up my voice at the speeds I'm going.

Thanks, all. Some hilarious comments in there, too.