This event will take place in Duesseldorf on Oct, 8th 2013. It is a meetup of the German Oracle customers using Oracle middleware products. The event will feature a number of great talks around GlassFish 4.0.
As you might have read in my previous blog post I'm currently doing Proof-Of-Concepts on what is possible with Java on a tablet like the Google Nexus7 device meaning a Nvidia Tegra chip which itself is an ARMv7 processor.
Thankfully there is a team at Ubuntu which dedicates its work to bringing a desktop linux to the tablet which supports the well-known standardized Java Runtime Environments out there.