The first presenters this morning are aimed at small business users, focused on making your life a lot easier to manage when it comes to meetings and conference calls. Tungle calls itself a "fast and easy meeting coordinator." It’s a lightwieght plug-in, currently for Google Calendar (others coming). 
It uses "the magic of P2P," said the CEO Marc Gingras, to share your data only with your contacts. It has a feature called the "Tungle space" so you can easily see the availability of others to schedule a meeting. The demo was impressive, with a great UI. "It’s free and will remain that way," said Gringas. Use promo code "DEMOfall" to get it in limited release. Full launch is later this fall.
Vello is the conference that calls you. You just select the participants, hit send, and everyone’s phone rings and the call begins. Imagine that! No more stragglers calling in five or ten minutes late… The COO, Mark Dzwanczyk, invited the audience to turn on their ringers and did a demo, and multiple phones immediately rang. The service boasts high-quality audio, Outlook integration, flexible billing, and a true business-class solution.
Unlike others like TimeBridge, Tangle seems to be targeting people who work with each other every day rather than the ad-hoc people coordination. Would my invitee agree to download a client just to set a meeting with me? This is a fundamental issue with Tangle
Actually, Tungle has a feature called “Tungle Space” which enables you to schedule meetings with anybody, even Non-Tungle users, by creating a dynamic Web Page where anyone of your meeting attendees can go and choose an appropriate time for a meeting.