I picked up a copy of Mastering JXTA a couple of weeks back to peruse whilst on vacation. I'm impressed with what I've read thus far and based on the 5-star average rating on Amazon it looks like this book is indeed a gem. Nice work.
I had the good fortune to attend a one-day open source conference yesterday and spent a good amount of time chatting with mr. "java.net" daniel steinberg which was fun. That and he fired up MyJXTA which always makes my day. Good times. To bad you couldn't make it to dinner Daniel as it was an excellent meal, fine drink and great company.
in my ears: Nice Inch Nails/Things Falling Apart/StarF***ers Inc.