Given that the actual bridging will happen through two separate bridges that already function, why do you need a parachain for what you are doing?

As a user, can't I already use the TON<>ETH + ETH<>DOT bridge to bring liquidity over?

Hey @JAMTON ,
From the proposal:

"stTON bridge solution
It’s crucial to provide a simple experience of entering the JAMTON ecosystem for TON
users. Two existing bridges - TON-Ethereum bridge (TonBridge) and Ethereum-Polkadot
bridge (Snowbridge) - will be used to solve the task of delivering TON liquidity to the
parachain. To make seamless transfers possible we have to supplement the infrastructure of
this bridge with two elements: jstTON gateway contract that will handle sending jstTON
through TonBridge to Ethereum network and stTON bridge proxy contract that will relay
tokens arrived to Ethereum to JAMTON via Snowbridge."

Question:
so the initial bridge MVP will be done by moving "jstTON" from Ton to your parachain using snowbridge, will it support all assets on TON or just jstTon?
Also what is jstTon? its a wrapped Ton token?