Token's USD anchored asset is now paired with tokens like XLM, ETH, XRP, and BTC on the DEX and listed as a new market on Stellarport (see the USD "Markets" tab).
Token, a company headed by Steve Kirsch - "a serial Silicon Valley entrepreneur with multiple billion dollar exits", is working on Stellar-based stablecoins. They are initially offering USD, "but about an additional 30 currencies will be added before end 2018 [sic]."