The gimp-app package will install .gimp-2.0 and .gimp-2.0-etc directories in your home directory. So if you're already using fink's gimp2, this could cause problems.
I run Gimp 2 from both Gimp.app and fink (2.0.4-1) routinely, and haven't noticed any problems in particular. What kind of problems are you envisioning?
Also, fink's gimp2 doesn't (or didn't, the last time I installed it) require you to go through the configuration process.
I'd be very suprised at this; every version of Gimp I've ever used has required this the first time it's run. To test it, I renamed my ~/.gimp-2.0 to get it out of the way and ran /sw/bin/gimp-2.0, which does indeed start the "GIMP User Installation" dialog.
Of course once you have the directory set up it won't trigger the setup dialog again unless you remove it: minor version upgrades or multiple installations of the same major version will share the same dot directory.
-- brion vibber (brion @ pobox.com)
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