Nokia Lumia 900  will be available in Singapore from Saturday, 26th May 2012. It will be retailing for S$849 (including taxes & without contract) at all 3 operators (SingTel, M1, StarHub) in Singapore.
The unit available in Singapore will be the non-LTE version and instead it will be running on HSDPA+ which gives you up to 42Mbps download speed. I will not put high hopes on that in Singapore *.
3 colors will be available on launch date, white, black and cyan.
Nokia Lumia 900
Check out my Nokia Lumia 900 post  when I was in Barcelona for Mobile World Congress 2012!
Official Site: Nokia Lumia 900 
* In Singapore be glad that you can even get 10Mbps download speed. Mobile data speed in Singapore has been horrendous for the past few years and it just gets getting worse.