Objective-J (the "runtime") is 76k, 13k gzipped (which is smaller than jQuery). The two frameworks that make up Cappuccino weigh in at about 800k uncompressed,

Objective-J (the "runtime") is 76k, 13k gzipped (which is smaller than jQuery). The two frameworks that make up Cappuccino weigh in at about 800k uncompressed, and about 150k total compressed. It's not a trivial amount, but its equally not very unusual. We're also not adding any html or css size to that, since you don't use either when using Cappuccino.