TelecomNZ's erstwhile flat rate, but speed limited (128kb/s) ADSL service.
Now capped (at around 3gb-7gb normally), though individual ISPs may choose to continue uncapped supply.
It is now called JetStream Starter so that all the ADSL services are under the same name. Apparently normal consumers get confused easily...
If you're in a central business district or somewhere with Clear lines, I'd recommend you ignore this and see if you can get ClearTempest.