Tip – I found where it was installed with this simple series of *nix commands that should work on most Unix variants such as Linux, for anything on your ${PATH}, using the ‘which’ command:

CrazyMcphee:systems smcphee$ which mvn
/usr/bin/mvn
CrazyMcphee:systems smcphee$ ls -lrta /usr/bin/mvn
lrwxr-xr-x  1 root  wheel  24  9 Mar 22:50 /usr/bin/mvn -> \
  /usr/share/maven/bin/mvn

Following the information on this page as a template, here’s the procedure I used to upgrade to the latest version at time of writing, Maven 2.1.0:

CrazyMcphee:~ smcphee$ sudo su -
Password:
CrazyMcphee:~ root# cd /usr/share/
CrazyMcphee:share root# mv maven maven-2.0.6
CrazyMcphee:share root# cp -R \
/Users/smcphee/Development/systems/apache-maven-2.1.0/ \
maven-2.1.0
CrazyMcphee:share root# ln -s maven-2.1.0/ maven
CrazyMcphee:share root# exit
logout
CrazyMcphee:~ smcphee$ mvn -version
Apache Maven 2.1.0 (r755702; 2009-03-19 05:10:27+1000)
Java version: 1.5.0_16
Java home: /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home
Default locale: en_AU, platform encoding: MacRoman
OS name: "mac os x" version: "10.5.6" arch: "i386" Family: "unix"

You’ll note I used a symlink for the ‘maven’ directory to the ‘maven-2.1.0′ directory (the command ‘ln -s maven-2.1.0/ maven’ …). This is to allow me to quickly switch back to version 2.0.6 if I find any incompatibilities in my old POM files with the new version of Maven, by simply changing which directory the symlink points to.

• Uploading photos in bulk does not preserve the order (any order) in the Flickr stream. So your photostream gets whack out of order.
• When you upload photos it assumes that whatever event, album, or smart album you’re currently viewing the photos in should be created as a Set on Flickr. Oh and if the event, album or smart album contains any ‘special’ character that Flickr won’t like in a set name, it won’t do the upload and doesn’t tell you why not.
• Deleting the spuriously created Flickr Album in iPhoto means the photos are removed from Flickr. After iPhoto tells you it won’t actually delete any photos! (it means from iPhoto, not Flickr).
• I tried moving the photos to another Set using Flickr’s interface, and removing the now-empty spurious set. IPhoto then asked me if this remotely-removed set should be removed, when I answered yes, somehow iPhoto still managed to delete the previously-moved photos from Flickr.
• Did I mention that iPhoto flakes the photostream order?

Most of this will also probably apply to the Facebook plugin integration too. This is seriously poor software from Apple. It effectively lies to you about what it’s doing. Yet again proving that Apple doesn’t like to play nice with others. Do not use the Apple-provided iPhoto to Flickr integration. It’s stuffed.

[UPDATE. More information from a iPhoto-Flickr plugin author here: http://speirs.org/2009/01/30/on-the-flickr-support-in-iphoto-09/ ... ]