There was a conversation about got lab last week, which prompted me to go check out Gitlab. After a good five minutes looking around their site I could not discern that it was possible to host repositories on their servers. Their entire sales pitch is about hosting your own. They need to fix that if they want any attention.
If they made their pages community oriented, and allowed for people to link their github accounts to their Gitlab accounts, then they would have a shot at stealing the hearts and minds.
If they could support forking from github that would be even better, but I bet GitHub would try to block them.