Hi Markus
the general answer is yea, no issue!
more detail: In the devcamp you will work mainly with your project partners. I assume there will be english only teams.
The agenda of the BarCamp will generate itself on Thursday. So you will have a direct influence on how many sessions will be in english ?.
I assume it will be easy to create a personal session plan containing only english sessions.
Opening and closing will be bilingual.
And last but not least, it would be an honour to have you with us and I know at least two guys who would like to shake your hands to thank you for the gapfil qt ?.
See you in Zurich!
Thomas