Last Wednesday, Apple Store (Singapore) had a special one-day shopping event and are offering discounts in their online store. The discounts for Apple products is quite pathetic, imagine only S$20 off for iPod Nano only. If you are intending to buy it long ago, S$20 is definitely better than nothing but it will not attract you to buy. However the discounts for 3rd party products/software are quite good. I bought the Belkin Auto Charger For iPod And iPhone for S$30 (including delivery). The usual price is S$37. It is about 19% discount. Bought it on Wednesday and it got delivered to me on Friday.
And yes, IT WORKS on iPhone 3G.