You have small games Games like payback, simcity, hos, etc... are really big and add up fast. I had 2.3 gb of apps and wasn't at a full 9 pages yet. But I decided to deleted like 30 of them about 10 min ago.
about 1.2gb installed a few hundred more mb in itunes dunno how many more gb if you count the random junk i've downloded and never kept
You know, you can take these things on the iPod. Settings > General > About. 3.0 has apps too, but 2.2.1 doesn't. :shrugs: