Originally Posted by tvhead

Because Changi airport in Singapore has ONLY international connections, and because security screening is done at the departure gate, you just walk from your arrival gate to your departure gate. There are also some airside trams to go between selected terminals. There is NO immigration screening whatsoever. If you don't have your on-going boarding pass, you can get that issued at the airlines transfer counter. so a 2 hour layover should be no problem. It won't be much different than a domestic layover in the US at Denver or Atlanta airports.
When you arrive Singapore there will likely be an SQ agent at the gate to greet and help arriving passengers. Just check with him/her.
Changi is one of the best airports in the world.