All except M1 already updated their website with iPhone 5 information. Nevertheless, none of them are revealing any price plan for the iPhone 5.
In their almost identical short Press Statement, they stated that the iPhone 5 will be available from 21st September 2012 and to watch out for more news.
Here is the link to their website: –
M1 site is still showing iPhone 4s.
Note: I made a mistake in my tweet yesterday about the availability of iPhone 5 from 14th September. This is a mistake. StarHub has indicated clearly it is from 21st September 2012. I have made another one to clarify. Apologize for any inconveniences caused.