It is a fork for saving Bitmain with their CryptoNote ASIC miners. As they can't mine the new Monero.
But it is easier to mine XMO. I have try to mine the new CryptoNote V7 with cpu, but i didn't succeed.
It seems that only a combination of CPU/GPU can mine the new CryptoNote V7. You can't mine 2 coins at the same time.
XMO can be traded at Hitbtc. Price of XMO is $6.

Yep, the ASIC validation algorithm for prevention of DDoS-attacks was changed a bit.

What will be the minimum ring size for Monero Original?

I’ve seen that multisession support  was added to the software  0.12.0. 0 version. What does it give and does it work on XMO? 

When will XMO be listed on new exchanges?

Tell me please, what wallet is the most suitable for storage of XMO?

Monero Original has a lot of advantages and innovations now due to implementation update of the system, which will also be in Brcause.

First of all, one of the main advantages is that a PoW tweak will curb any potential threat of ASICs and preserve ASIC resistance.. It’s very important.

It will not let industrial miner to mine most of monero and decrease it's level of decentralization.