Macintosh tab editing software, TabView, has been updated to version 1.14. It's now possible to see the details of the guitars defined in the tab using the new Guitar Setup panel: For every guitar you can see the description, the tuning and the capo to use (if any). You can also click on the string buttons to tune your guitar.
MIDI playback has also been improved to handle capo's and tuning offset just like PowerTabEditor does on Windows.
TabView makes it possible to view and print PowerTab tablatures with your Mac.
PowerTab is a well-known and widely adopted tablature editor for Windows systems. You can easily find thousands of song transcriptions in this format on the net.
Price: 15 EUR
Requirements: MacOS X 10.3.9 or later
Website: http://www.tellini.org/mac/tabview/