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.