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I only use Skype for its Mac/PC audio-only conferencing, which works very well. I don't use it for instant messenging because I have iChat and MSN. However, this will become redundant once Tiger apparently adds audio-only conferencing between iChat and AIM 5.5 for Windows.

Skype for Mac is currently a beta and has problems when an audio conference with 3 or more people in it is executed. My experience (2 Mac people and 1 Windows PC) ends up with echoey chaos. Also, there seems to be a bug with respect to PC users recognising when Mac users are online.
 
1) Blind Man's Bluff: thumbs up
2) Skype listing in use profiles: (thought about it a while, then: ) thumbs up
great suggestion.
 
I have tested out Skype's most recent beta and my findings are as such:

The new features are nice, and nothing is groundbreaking or shocking, but it's cool to have more options.

Quality has not changed, it's still very good. Very MINOR revision.
 
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