Quote from the cryptx dev (4 hours ago):
"Update - I've decided to accept Digibyte, starting this evening.
I'll post in the Digibyte sub-reddit once I've enabled the market."

Link:
http://www.reddit.com/r/CryptX/comments/1wvs7v/add_digibyte_please/cf7nkm4

Edit:

Another quote:
"Hi Everyone,
I launched an alt-coin exchange in the last several days as I was incredibly frustrated with the existing alt-coin exchanges.
Someone suggested in /r/CryptX that I add DigiByte, so I did so, and it's now live on the site.
I'm happy to hear any feedback."

Link:
http://www.reddit.com/r/Digibyte/comments/1x3xs1/dgb_now_trading_at_cryptxio/cf7vhaq

Not sure if anyone noticed (or if this is a repost), but I just noticed Digibyte is on www.cryptx.io Not sure when the trading will begin however, but hopefully soon enough!