Some of the old(er) timers here might remember StockGeneration.com that went down several years ago. Having only recently got back into the HYIP game, I was pretty surprised by the similarity of DXInOne to Stockgeneration's system.
Of course there was no egold and the likes around, so you had to mail in your money!
Also, whatever happened to DigitalStocks? I stopped monitoring it and can't remember what happened.