I was going to post a smilar thread when I read yours.
Leo hardly naps at all during the day - but it's not a problem for me - he'll happily sit in his bouncy chair playing with a toy or watching his big brother. SOmetimes he'll lie on his activity mat and fall asleep there. If he gets a bit grumpy, i'll give him a dummy / paci and he'll fall asleep - he's just started sucking his fingers to do this as well.
He'll nap longer if we're out in the car or buggy, but this doesn't affect his night time sleep.
he's just started sleeping from 7pm - 9pm, then wakes for a feed, then straight back to sleep until 6am. Before 7pm he has a feed around 6pm, then a bath and wind down time.
he's a very happy baby and I can get things done if he's not asleep, so I'm not fretting!
we'll see if things change after 6 months!