> What did he mean by not being able to split lanes? Multi-plexing lanes
> or seperating the two from each controller to equal 2 X1 connections?

Judging from his posting I linked to, the latter.

> I would hope we would be able to run seperate X1 connections.
> An X2 connection doesn't seem that useful.

According to what Neko wrote, you can run an x1 connection from an x2 controller, but only one, not two. So you'd be effectively throwing away one lane.
While an x2 connection doesn't seem that useful at first sight, you can use a PEG slot (x16) with an x2 connection, similar to how it is done on the Sam460ex.