Josie went to one nap at only 11 months and never went back. Actually, I kind of got to like my mid-day break better than the two broken-up ones, but that took a while. LOL
As far as the early bedtime, remember that when the clocks change he'll be going down at 7:50 (assuming he keeps the routine going), which is almost 8PM, not too strange at all if you look at it that way - and that what, only 2 more months? Till then, enjoy tht ime in the evenings, especially if he's sleeping till a decent time in the morning.
BTW, odds are that once he gets more teeth or a cold, this will change anyway, so for now I'd say if it ain't broke, don't go trying to fix it!