Saw in your profile that you're bootstrapping, do you find Singapore a good environment for a startup? I haven't really looked into it, yet..
On the flip side, unless your startup's market is geographically agnostic, I think you'll have to constantly remind yourself to look outside the SG market if you'll want any kind of real success, since the SG market is kinda small.
As for everything else (like talent pool), I'm not really sure yet as I've only been here for a few months :)
I was mainly thinking in terms of things like funding, visa and registering a company. Maybe it's time I check out HackerspaceSG. I've done some googling and checked SG government websites, but it's always valuable to hear others experience.
Anyway, my side-project(s) are not going to "startup"-phase anytime soon.
So if you need social/community support, there's lots of it in Singapore.