Can I have the Firehose or other Elevated Streaming API Access?
In early 2010 we will provide detail to our data availability announcement at the December 2009 LeWeb conference. In the meantime, some increased access is available on a case-by-case basis by emailing your application use case and a brief organization background to api@twitter.com. Nearly all use-cases can be satisfied with some creative application of a combination of the public streams on the Streaming API.