As I will be working on kukku, my twitter app, i thought of applying for Twitter API whiltelisting. So i did it yesterday night, and today when i woke up found its approved. So cool. The mail which they sent is here.
They mention in the mail that it’ll take 48 hours to activate it but surprisingly when i checked my Tweetdeck, It was activated. 150 to 20,000 API requests per hour. Must utilize this…

Cool…..so this wont work with any other IP rather than 3 mentioned above ?
Its account or IP. that’s 3 ip only…
It is possible to whitelist both accounts and IP addresses. Each whitelisted entity, whether an account or IP address, is allowed 20000 requests per hour. If you are developing an application that should be considered for whitelisting,
Check http://apiwiki.twitter.com/Rate-limiting