PodSmith
PodSmith protects your data with your iPod.
With PodSmith, iPod works as a key for your computer.
You can lock or unlock your Macintosh with your iPod.
System requirement: Mac OS X 10.3 ...
Cost: $20
Buy full version
Trial version
Publisher: MAKI Enterprise Inc. 
Descriptions
PodSmith:
PodSmith protects your data with your iPod.
With PodSmith, iPod works as a key for your computer.
You can lock or unlock your Macintosh with your iPod.
System requirement: Mac OS X 10.3 or later.
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