UM has coverage in both countries through GSM providers so normally you would be ok.

Prion, I hope you are right about this one too if not I will go crazy there. I hope they do not need 3G phone like provider in Taiwan cause it appears ths Razor phone is not a 3G phone.

It has been the longest days of my life in Taiwan with out a cell phone. Will keep you all posted as soon as I get to Hong Kong.

Do not worry! You will have coverage.

Thanks prion. As son as I turned on the phone full bar. First I as on Sunday Network and now its on CSL network.

Thanks for your help all.

I'd still be tempted to get a local SIM for Hong Kong as calls can be very cheap indeed, like local and int'l calls from 3 cents (US or ?) a minute

eg http://dualband.three.com.hk/website/templ...d25100&lang=eng