Recently i was having some problems with iTunes 12 on Yosemite and iTunes wouldn't respond after a while or iTunes would just crash when playing a podcast or search the iTunes store.
But there is a simple fix via the terminal following this kb article from Apple for resetting the Sync services :
Fix from apple: http://support.apple.com/en-us/TS1627
OS X Mavericks 10.9.3 and Later defaults delete com.apple.SyncServer SyncServicesResetWorldRunOnce
With the update to OS X Yosemite the current versions of MAMP application might throw an error stating that it failed to start Apache.
To fix this you have to change envvars to _envvars in: Applications/MAMP/bin/apache2/bin/ or /Applications/MAMP/Library/bin/
Go to Applications -> MAMP -> bin -> apache2 -> bin folder, find 'envvars' file and rename it to '_envvars'.
