Personally, I've always had dog allergies, and yet our maltipoo has never set me off. There again, my allergy triggers off of saliva, not the fur. She doesn't seem prone to licking herself all day long, so the shedding isn't covered in what would set off my allergies.
I don't know that a short haired dog will necessarily be less of an allergy problem, but one that doesn't drool or lick as much seems to make my life easier.
Hope that helps!