If I were them, I would do the same thing. After all, I have to clear my inventory before stocking up with the new model lest when the latter comes, I can't dispose off the older one.

@clawhammer
It's not 4G(i4G) but iPhone4(i4)

@nimrod
I agree with your latter statement but though it may be troublesome to send the unit back to Singapore for any warranty claim, I assure you it would be very much less hassle as they would exchange your unit in no time, if not on the spot, compared to the telcos here where some are known to have waited for 2 months. That is the trade off.