I remember those days. Not a lot came out of those presentations, though. It was a lot about Java guys having a bit of dynamic language envy, while having to code with Struts and 1.4 Swing all day. A way of getting that hype and with it some new tech to play with into the enterprise by a backdoor. Which is way too hard to do.
Mobile dev being new, even Java developers get to play with more shiny toys. For good or ill...