Martian Technology has released SlingShot 2.0.3, an update to its file and music synchronization application for Mac OS X. SlingShot 2.0.3 fixes several bugs related to synchronizing music in iTunes 7 between computers connected over a network. SlingShot is the easiest way to back up all of your important (and costly) music and to share it among all the computers you own. Unlike the “iPod reverse sync” now supported by Apple, SlingShot allows you to synchronize all of your music, not just songs purchased from the iTunes Music Store. SlingShot 2.0.3 (US$29.99) is available as a Universal Binary, and requires Mac OS X 10.4 or newer.