TokenBridge is a product to transfer tokens between Ethereum chains. Works in erc20 to erc20, erc20 to native, and native to erc20 modes. Powering POA20 bridged token and xDai Chain native token. Launched in May 2018.
Igor, as requested I am creating an issue under the TokenBridge thread. Also, I believe Adam Skrodzki, who is our blockchain developer on this project is already in touch with you.