Just got a call from Snap! - apparently the 200Mbps plan is being discontinued (as of tomorrow for me), so I'm back on the 100/50 plan.
It would be fair to say that it had it's share of issues (e.g. international speed, disconnects when downloading large files) but it was looking to be getting those resolved. To be honest I'd be a lot more upset if I'd managed to find any activity where the extra speed made any meaningful difference - as it is, it's really just a loss of bragging rights...
I would be interested if anyone was able to give an official statement outlining why it has been discontinued - and if there's any hope of it coming back anytime.
Chris.