Interesting! SingTel is bringing in the 3G/WiFi PlayStation Vita to Singapore! It will be on sale from 14th April 2012. The RRP of it is S$469 and of course if you get it from SingTel, it will be subsidized (price plans located at the bottom of this post)
You can pre-order the PS Vita online at singtel.com/PSVita from today (28th March 2012). Pre-order customers will receive S$20 worth of Sony PlayStation Network credits to purchase games.