Magical plugin for sublimetext2
(Google Chrome Extension for YQL page scraping)
(Achieve Hindi Transliteration offline, in javascript)
(Determine gender from a twitter handle)
(Build YQL based mashup in 10 seconds)
(Chrome Extension to analyse tweeter Behavior)
(Dzone's popular articles direct link on pages, sorted in read/unread based on whether You visited the link already)
(Open Source Offline Google Maps for Windows Mobile in c#.net)
Text-to-Speech Using Google
(Type source and destination address and get complete the idea of the route, by seeing street view and bird's eye view )
(Type phonetically in Hindi and get it translated to English and other languages)
(Windows mobile App for Farting, similar to iFart on iPhone)
What kind of hack I am talking about here? Read these slides.