Last year’s Echelon was great, you can see posts here:

http://startupshk.posterous.com/?sort=&search=echelon

This was the first opportunity I had to meet up with startups from around the region, and it has been valuable for me in understanding what the market is like in others Asian countries. They had great speakers from all over the world. 

If you are a web or mobile company, consider either attending the conference or applying for the Launchpad.

From the site:

Echelon 2011 will be a two-day, double-track event that happens in Singapore in June with an expected attendance of more than 1,000 delegates; a demo pit of more than 40 startups and companies; and workshops and fringe events.

Key Dates

Jan–Mar 2011: Call for submissions from startups throughout Asia, focusing on Southeast Asia

April 2011: Satellite echelon in Jakarta, Kuala Lumpur and Singapore

June 11–12, 2011: echelon 2011 at University Cultural Centre, National University of Singapore

Find out more at: Echelon 2011