http://www.scmp.com/news/hong-kong/a...nding-whatsapp
I think this is a GREAT idea. Beats having to deal with interbank transfer rates, esp for those who are with HSBC and want to pay someone who doesn't bank as part of the HSBC Group.
"will introduce a cash-transfer app in the second quarter of this year. With it, users will be able to transfer up to HK$1,000 per day to friends or relatives"
I am however waiting for them to roll out their nfc sim card for other networks apart from pccw.