Can you look at the memory dump at http://dl.dropbox.com/u/8699844/IU-111.167_lhamel_24.01.2012_19.09.04.zip ?
Steps to reproduce:
* open and work in various Android projects
* close and reopen and work, etc.
* close all
* click for GC several times
* note that RAM heap is stuck at over 350Mb
* open the smallest project (a project must be open in order to use the memory dump tool, right?)
* note that RAM heap is about 380Mb
* Idea 11.0.1
* java 1.6.0_29
* OSX 10.6.8