Apple’s killer product iPhone, which is probably the best selling premium range phone ever in the history of mobile handsets is now open to any Developer around the world. The SDK attracted more than 100,000 downloads in just 4 days. This surely a shot in the arm of Nokia, a lethargic finish company with bulky handsets with literally no innovations.

Also if you are a Mobile Developer, then you must download this SDK and start building some cool application. [Note the Download is 2.1 Gig, try your best using Torrents] Also, Silicon Valley’s most successful Venture Capitalist, John Doerr has announced a $100 million iFund to startups developing on the iPhone platform.