Will this technology be brought to Litecoin,Tagcoin etc current coins which are being mined for some time or will it be for new coins only?
You sure about this?
I think he's referring to Alpha Technology's recent announcement regarding their alleged litecoin ASIC. With a sufficient front end you'll be able to mine any scrypt-based coin with this thing. I doesn't matter whether it's a new coin or like litecoin in use for years.
If thats the case its nothing to be scared off so badly.Alpha technologys highest asic will be mining at 10000 khash,it can be done at home with 8-10 gpus.