The folks over at VOIP Supply have a nice little contest running in their blog. The post, called 101 things you can do with asterisk, is collecting responses about novel things to do with Asterisk implementations.
They amended their original plan to keep the contest open until Friday instead of just until it hits 101 responses. That could happen in less than 12 hours. They many we get into the hundreds of responses.
I wonder how many of the ideas being listed would only be possible with Asterisk? Not Freeswitch, YATE, etc. While this contest certainly illustrates the fertile ground that Asterisk provides, creative people will use whatever tools they have at their disposal.