Three of the vendors were good because they were open source. Only one felt like a sales pitch

App dynamics

on how to monitor software.  Read like a commercial

Cache resin
on open source servlet container. Will be supporting JEE 7.  Can run PHP on resin

Vaadin
Quick overview of complex widgets in java without requiring browser plugin. Deploys as single jar file. Will be getting “book of Vaadin” at lunch

FuseSource
Sponsors Apache projects including ActiveMQ and Camel (enterprise integration patterns). Covered “why open source rocks”. And
included the word grok in the answer. Noted when you contribute code online it is there forever. Remember forum posts work that way too. Then went on to explain why you should join an open source project – learn a lot, transfer back to work, networking, etc. Dynamic presenter too.