Ribbit, a Silicon Valley startup has just launched Amphibian, an online platform that acts as an extension to your mobile phone. You can send and receive calls, check your voicemail, and much more, all without requiring your mobile phone in-hand. All you need is access to the web.

As you’re on the phone with the caller, Ribbit will pull information about the caller onto the homepage, including recent news, blog postings, and twitter, flickers, and birthday information associated with the caller. And if you don’t want to use the Ribbit desktop, you can use one of thousands of developer apps based on Ribbit’s open APIs. These apps will allow you to pull Ribbit into your iGoogle, Facebook and MySpace pages. There is even a Ribbit desktop phone that looks like an iPhone called the AIR iPhone (pictured above).

The Company has received funding from Alsop-Louie Partners, Allegis Capital and KPG Ventures.