Disclosure, before I start, I run Voxeo's Developer Network. We think there's room in the world for both API-based cloud options and XML standards-based develo

Disclosure, before I start, I run Voxeo's Developer Network. We think there's room in the world for both API-based cloud options and XML standards-based development. We have a variety of options for building and deploying apps and a wide range of pricing. From 3 cents per minute in the cloud to enterprise apps with SLAs that run the voice applications for some of the world's largest companies. For our enterprise customers, many of them prefer to use the w3c standard VoiceXML to avoid vendor lock-in. Some of them also use our proprietary CallXML, a simplified language for building apps. These apps run on our carrier-grade hosting facilities in the US and Europe or at the customer's data centers. For web devlopers, we have Tropo.com, a cloud service offers APIs for popular web programming languages. Build in PHP, JavaScript, Ruby, Groovy, or Python, with more options coming shortly. Pay as you go, develop in your native language, and run your apps in a cloud on top of the same infrastructure our enterprise hosting customers use. It's more than voice. Using one code base, your app can not only make and receive phone calls, but also send and receive SMS messages and interact over IM and Twitter. As rjurney mentioned, we're developer friendly. You can create an account on either Tropo or on our enterprise hosting for free and run there as long as you need to without charge. We don't put any artificial limits on our dev platforms. We'll give you a dedicated phone number for your app. We'll also give you Skype numbers, SIP addresses, an XMPP address, and a toll-free number. Build and test your app, hand it to your friends to try out. When you're ready to move to production, let us know.