I guess you are in India, here is my advice, if you wish to do a Graduate degree in USA with full scholarship:
Rather than working on startup full time, you can try doing research under some good professor, at IIT or IIIT maybe. Try getting few conference publications. Plus try getting a good GRE score. If you can do that then getting fully funded PhD or MS in Computer Science wont be too difficult. WWW 2011 conference is slated to be in India, though the deadline for papers in around 40 days away, by doing interesting research you can try getting at least a poster accepted. That will help significantly in your applications.<p>There are several ways to fund your education in US, you can try to go to a universities where TA and RA positions are easier, these colleges are tougher to get into, but with good research they wont be that difficult. Also you are allowed to work 20hours on campus, you can try for CO OP jobs they pay around 10 -25 $ per hour, they may not cover your entire living costs but would cover substantial portion of it.<p>I saw your current twitter app, even though it is a nice implementation, professors and admission committees are looking for creative and research oriented endeavors, rather than skills for creating web apps. An MS student at a good company such as Google, MSFT, Amazon, Oracle, or Yahoo makes around 75 - 90 K a year in base salary and additional 25-30 k in stocks, options or bonuses. And then you would be much better equipped to launch your startup. a good PhD candidate earns even more. if you end up as a Quant on wall street you would earn significantly higher amounts.<p>Which universities did you get into? A good idea would be to work on a broader research subjects, which many professors in that university study. that will increase your chances for an RA position.