Both Celcom and DIGI has started registration of interest site for the coming (31 May) Samsung Galaxy S III. Just input your details in those form and you’ll be informed once the device hit their stores. Websites links as below:

 (Celcom Samsung GALAXY SIII: http://goo.gl/s741d)

 (Digi Samsung GALAXY SIII: http://goo.gl/SUfJK)

According to Engadget, Pebble Blue colour might not be available in first round of launches. This seems to be true as Celcom ROI only offer Marble White Samsung Galaxy S III. For those that wanted a Pebble Blue S3, you might need to wait a little longer.