Hong Kong Telecommunications (HKT), a subsidiary of PCCW, has taken the extraordinary step of signing up Google WiFi exclusively for its 2.5 million broadband homes. HKT will bundle this offer with its Netvigator broadband lines going forward, instead of charging extra for WiFi, a practice which in the past has driven most customers to buy their own Linksys or Netgear device or better still, a cheaper local brand. Part of the rationale is to cut the number of help desk calls which relate to WiFi behaving badly. HKT mostly has fiber to each home, many of which are built into tower blocks with something like 75% of broadband customers living in MDUs (multi-dwelling units). The new Google WiFi must be…