Is it possible to change the location of %UserProfile%\.IntelliJIda10 ?

Hello Nadav,

Yes. The location of the config and system directories is specified using
the idea.config.path and idea.system.path in idea.properties under the IntelliJ
IDEA installation directory.

Our environment could consist of several installations of IntelliJ
(for different branches, for example). Is it possible to specify a
different .IntelliJIdea10 directory for each installation?

--
Dmitry Jemerov
Development Lead
JetBrains, Inc.
http://www.jetbrains.com/
"Develop with Pleasure!"

See also http://devnet.jetbrains.net/docs/DOC-181.