Yeah, I got messed up on this one too.  Like someone had posted before though, it's interesting that

SELECT SIN(PI()/2) returns 1 but SELECT SIN(PI()) doesn't return zero...  Oh well,...

If you would consider staying with Cingular, a great phone to get would be the Cingular 2125.  It's made by HTC, and rebranded with Cingular.  It's a smartphone running windows...