I am using IntelliJ IDEA (10.5) for Android development with latest Google USB Driver (version 4) for debugging. After some time of development in IntelliJ IDEA when Android dev
Idea is known to have long GC pauses sometimes - it may freeze completely for some time. And it takes even longer if it goes into swap - in this case, whole system may become unresponsive. See this issue and discussion in forums.
So, if it is indeed your case, try using statically-compiled version from here - it's proven to work faster.