But I am not sure if my old iphone 4S (awaiting upgrade later this year) can take the 24-hour lazy mode. I have to fully charge it in order to start the next-daily 2-hour run; I would not  be able to imagine that I might have to keep it running for 24 hours. It blacks out easily. Not every one in this world has a new smartphone.

Returning to the good old days? I do not wish it come back just like the days (before iphone launch and subsequent Android upgrade) when Mangocoinz dropped from my much higher purchase price of 7,000 MCZ (7,000,000 MGC ?) to 200-300 MCZ although I still unhappily bought some of them at those prices.