They had several parallel tracks, most notable ones being occupied by Microsoft (Silverlight, Expressions blind, Azure etc), Adobe (Flex, FlexMonkey, AIR, Flash etc), php (php user group, singapore), Flex User group and other user group communities.
All the 3 big names in this arena were sponsors of the event (Google, Adobe and Microsoft).
Apart from tutorials and workshops / jumpstarts, keynotes, I got myself a cheezy Google Lanyard, and some Microsoft & RIAction goodies. Joined up with the Flex user group, php user group and met a couple of folks at creativecrew as well.
Interestingly, some web 2.0 startups like zopim (Aims to add an intelligent chat agent to any website for clients / customers). There were a couple other companies present, but with the same old USP of software consulting and development.
IMO the RIAction team (one of the organizers is Hu Shunjie) did a pretty good job of a first RIA Conference in Singapore.
Update: Just found this video about RIAction "I love RIAction".