HUMMINGBIRD BUSINESS

I wanted to find out if there was already any applications similar to a pet hummingbird and I found the Hummingbird app for iPhone. But there is nothing to do with Hummingbirds or sugar levels.
This app is a schedule management software. There is not much to understand to me because the app is in Japanese, but it looks like the "calendar" that comes in the iPhone. Or at least I use the calendar for the same purposes.
In addition to that I wanted to find out why a Hummingbird is associated to business, as this information would be the link between Diabetes UK and my targeted audience.

I found business softwares named Hummingbird.
http://findarticles.com/p/articles/mi_m0FOX/is_n13_v3/ai_21051189/

and further more, one explanation of a business called Hummingbird who quotes a folk tale called "The Flight of the Hummingbird", which is a parable for the environment.

http://hummingbirdenergy.us/faqs/