There are a handful of providers supply free IPV6 binary feeds.

Eweka
Adress: news.ipv6.eweka.nl
Port: 119
Connections: 4
Speed: 20mbit
username: none
Pass: none
retention: 107 days

newszilla
Adress: newszilla6.xs4all.nl
Port: 119
Connections: 3
Speed: 150 kb/s
username: geen
Pass: geen
retention: 18 days

XS news
Adress: reader.ipv6.xsnews.nl
Port: 119
Username: http://www.xsnews.com/ipv6/
Pass: http://www.xsnews.com/ipv6/
Retention en complete guarantee: 107 days