Dearlove, Christopher (UK) wrote: > Yes, all smart phones support Wi-Fi. In some "unregulated" (not > actually entirely so) frequency bands, and with regulated powers, > over a short range. CSMA/CA can also work over a long range too and can, in a sense, fairly arbitrate packets from different countries at border towns. > But the main long range 2G/3G signals are > TDMA or CDMA in regulated bands. Forget them. Masataka Ohta