Cable was the first practical broadband option for Australians, and it generally remains the fastest choice. Now it’s getting insanely fast. Telstra today announced that it will speed up its cable network to 100Mbps, in an upgrade that’s due for Melbourne users by December this year. No word on whether other cities will be included, but it’s hard to imagine Sydney won’t follow course pretty swiftly. Tellingly, there’s also no word on price. Nonetheless, it’s good to have a continuously evolving alternative to ADSL, even if it doesn’t stretch much outside capital cities.