I checked in on a trouser and shirt order last week and got told the same (that they'd be shipped by the end of the week). I'm not complaining though, as I understand these things take time, but 10 weeks is quite some time. Perhaps they were waiting on fabric delivery?
I've got one (pleb-tier 4gb memory/i5 processor). I personally think it's great; good for travelling as it's quite slim and lightweight, although I'm jealous of the missus' macbook pro touch-pad/ keyboard... I'm no mac fan but next time I think I'll get the new macbook pro, which is now slimmer than their previous macbook air.