I am running Limewire on my MAC(aah) for a few days now. I have downloded a half dozen files some MP3, some MPEG-1 Today for the first time I monitored a servant trying to upload one of my files. When last I looked he had attempted a dozen or so times, on the same file, and each time the best he got about 30% uploaded before failure.
I will continue to monitor and let you know.