Twilioforce is a library developed by Appirio that enables developers to integrate Twilio's communication services with Salesforce. The company has created a click-to-call demo to showcase the ease of use of this library in Salesforce, allowing users to try it out and download the source code for further development. A developer contest has been launched, where participants are encouraged to build Twilio apps for Salesforce, with the chance to win prizes including a Netbook from Twilio and a flipcam from Appirio. The contest details can be found on the company's website, and the winner will be announced at the upcoming Dreamforce conference.