The book "Java EE 5 Architekturen" is available from amazon.de - so is really out now :-).
The p4j5 community is still growing. Only last week I approved 3 observers - now we are 22. I get many direct questions and suggestions (some really interesting) directly per email regarding patterns, and architectures - please use the p4j5 forum/mailinglist for discussion as well.
Cloudy Jakarta EE and MicroProfile: Microservices, Clouds and Beyond Jakarta EE / MicroProfile airhacks workshops at MUC airport, Winter Edition
airhacks.fm the podcast:
Stay in touch: airhacks.news.