With companies like Voxeo providing free VoiceXML and CallXML phone numbers and development tools , along with open source tutorials, the spoken interface is becoming much easier to use.
Many different standards seem to be emerging for accessing wireless information.
There also appears to be some effort to standardize or make these different methods interchangeable. These projects include Enhydra's XMLC, the Xalan project at apache.org, Javasofts J2ME to name a few. Many companies are selling their own versions of this very idea. The Kannel project released version 1.0 of the world's first open source SMS and WAP gateway. The CD image of the product is available for free download from the Alligata site, and 3G LAB also offer commercial packages including support, printed documentation and maintenance releases.