all java, yes. Azureus was bloatware and why most people moved off of it. It used 120megs of memory and did nothing.
Vuse, 110megs and has about 50 things you can do with the program now. Everything from updating your psp to rss feeds. I'm liking it so far and with 4 gig of memory, even though it's a little high, I don't mind as much any more.