Also present in F17:

# yum install libicu-devel
Loaded plugins: changelog, downloadonly, priorities, remove-with-leaves, show-
              : leaves, tsflags
16 packages excluded due to repository priority protections
Package libicu-devel-4.8.1.1-2.fc17.x86_64 already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package libicu-devel.i686 0:4.8.1.1-2.fc17 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package              Arch         Version                 Repository      Size
================================================================================
Installing:
 libicu-devel         i686         4.8.1.1-2.fc17          fedora         670 k

Transaction Summary
================================================================================
Install  1 Package

Total size: 670 k
Installed size: 3.7 M
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Check
Running Transaction Test


Transaction Check Error:
  file /usr/bin/icu-config from install of libicu-devel-4.8.1.1-2.fc17.i686 conflicts with file from package libicu-devel-4.8.1.1-2.fc17.x86_64

Error Summary
-------------

[2]    12366 exit 1     noglob yum install libicu-devel

icu-4.8.1.1-4.fc17 has been submitted as an update for Fedora 17.
https://admin.fedoraproject.org/updates/icu-4.8.1.1-4.fc17

Package icu-4.8.1.1-4.fc17:
* should fix your issue,
* was pushed to the Fedora 17 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing icu-4.8.1.1-4.fc17'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2012-9533/icu-4.8.1.1-4.fc17
then log in and leave karma (feedback).

icu-4.8.1.1-4.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.