I'm in the same boat as well. I am consistently hovering around 21-22 mb free. With all the recent updates, it eats up all my memory.
Freaking flash is still 12 mb, google maps is 9.7 mb, music 7.7 etc. Half the google apps I don't even use such as books 4.3 mb and goggles 3.8 mb.
I have to...