IXULIAN  Great app. After finding out that Zterm did not work with Snow Leopard and my USB to Serial adapter, I found out about CoolTerm... I use it to configure Cisco devices, and so far it's been working great.

The only problem I found was that I can't recall previous entered commands by pressing the up arrow key.

If this feature was added, then I'd give it 5 stars.  
(Version 1.1.2)

ETJ  Great little app. Does what it says and useful for those who need this sort of thing. There are still lots of pure serial devices out there, and so for Mac types to try prototyping things this is a great help.  
(Version 1.0)