Will SS ever increase the upload rate, infact will any ISP in NZ up there upload speed,but mainly SS since Unlimited bandwidth deal , id like to stream gaming on Twitch TV at a reasonable rate maybe around 3mbit + for 720p resolution, or would it just be a waste of time since our speed is capped at certain time during the night.
Just a thought as ive seen 0 New Zealand Streamers
There are lots of ways of getting faster upload speed - if you're on the Slingshot ULL network they offer Annex M which does ~2Mbps via ADSL2+, and if you're wanting faster again you can look at VDSL2, fibre or wireless options.
It's not about the ISP increasing the rate, it is the standard/technology that says what the upload rate is. ADSL2+ (G.992.5) has a max upload of 1Mbps on Annex A which is the only ADSL2+ standard offered on the Chorus network. Slingshot offer Annex M on ther ULL equipment ("the better network" as they call it) which offers a theoretical max upload of 3Mbps.
Edit: At the moment VDSL is the best option for most people as it is available now for quite a large amount of people. But other than that, fibre or a fixed wireless solution are the other options.